List of nicknames of serial killers

This is a list of nicknames of serial killers.

0–9

 * ".22 Caliber Killer":
 * Donna Perry
 * Joseph Christopher
 * ".22 Caliber Killers" – Gary and Thaddeus Lewingdon
 * ".44 Caliber Killer" – David Berkowitz
 * "60 Freeway Slayer" – Ivan Hill

A

 * "ABC Serial Killer" – Moses Sithole
 * "Accra Strangler" – Charles Quansah
 * "Acid Bath Murderer" – John Haigh
 * "Adman Rapist" – Bobby Joe Long
 * "Alligator Man" – Joe Ball
 * "American Bluebeard" – Helmuth Schmidt
 * "American Jack the Ripper" – William Dean Christensen
 * "Angarsk Maniac" – Mikhail Popkov
 * "Angel Face" – Robledo Puch (Cara de Ángel)
 * "Angel Makers of Nagyrév" – Group of Hungarian killers active in 1914–1929
 * "Angel of Bremen" – Gesche Gottfried
 * "Angel of Death"
 * Beverley Allitt
 * Roger Andermatt
 * Richard Angelo
 * Charles Cullen
 * Kristen Gilbert
 * Donald Harvey
 * Robledo Puch (El Angel de la Muerte)
 * Efren Saldivar
 * Harold Shipman
 * "Anthrax Killer" – Unsolved
 * "Apache" – Yves Trudeau
 * "Ape Man" – Gordon Stewart Northcott
 * "Aqueduct Murderer" – Diogo Alves
 * "Arch Murderer of Marrakech" – Hadj Mohammed Mesfewi
 * "Artvin Monster" – Adnan Çolak
 * "Asghar the Murderer" – Ali Asghar Borujerdi
 * "Assistant Death in Luzem" – Roger Andermatt
 * "Athens Ripper" – Antonis Daglis
 * "Atlanta Child Killer" – Wayne Williams
 * "Atlanta Ripper" – Unsolved
 * "Atteridgeville Mutilator" – Moses Sithole
 * "Aunt Thally" – Caroline Grills
 * "Auto Shankar" – Gowri Shankar
 * "Axe Killer" – Elifasi Msomi
 * "Axeman of New Orleans" – Unsolved

B

 * "B1 Butcher" – Unsolved
 * "Babe" – Baekuni
 * "Babysitter" – Unsolved
 * "Babyface Killer" – Lesley Eugene Warren
 * "Backpacker Killer" – Ivan Milat
 * "Backpacker Murderer" – Francis Heaulme
 * "Bahadurgarh Baby Killer" – Satish
 * "Barnaul Maniac" – Unsolved
 * "Baseline Killer" – Mark Goudeau
 * "Baton Rouge Serial Killer" – Derrick Todd Lee
 * "Beast" – Luis Garavito (La Bestia)
 * "Beast of Atteridgeville" – Johannes Mashiane
 * "Beast of Birkenshaw" – Peter Manuel
 * "Beast of British Columbia" – Clifford Olson
 * "Beast of Manchester" – Trevor Hardy
 * "Beast of Montmartre" – Thierry Paulin
 * "Beast of Oberfranken" – Manfred Wittmann
 * "Beast of the Andes" – Daniel Camargo Barbosa
 * "Beast of the Bastille" – Guy Georges
 * "Beast of the Black Forest" – Heinrich Pommerenke
 * "Beast of the Railway Station" – Carl Großmann
 * "Beast of Ukraine" – Anatoly Onoprienko
 * "Beasts of Satan" – Group of Italian killers active in 1998–2004
 * "Bedroom Basher" – Gerald Parker
 * "Bedroom Strangler" – Russell Maurice Johnson
 * "Beer Man" – Unsolved 2006–2007 murders in Mumbai, India
 * "Beltway Sniper" – John Allen Muhammad and Lee Boyd Malvo
 * "Bentong Kali" – Kalimuthu a/l Pakirisamy
 * "Berrima Axe Murderer" – John Lynch
 * "Bible John" – Unsolved
 * "Big Harpe" – Micajah Harpe
 * "Big-Eared Midget" – Cayetano Santos Godino (El Petiso Orejudo)
 * "Bigfoot"
 * Unsolved 1975 American murders
 * Philip Smith
 * "Bike Path Rapist" – Altemio Sanchez
 * "Bitsa Park Maniac" – Alexander Pichushkin
 * "Black Angel" – Robledo Puch (El Ángel Negro)
 * "Black Doodler" – Unsolved
 * "Black Panther" – Donald Neilson
 * "Black Widow"
 * Elfriede Blauensteiner
 * Judy Buenoano
 * "Black Widower"
 * Lowell Amos
 * Gabriel Garza Hoth
 * "Blackout Ripper" – Gordon Cummins
 * "Bloody Benders" – Family of American killers active in 1872–1873
 * "Blood Countess" – Elizabeth Báthory
 * "Bludgeon Killer" – Gerald Parker
 * "Bluebeard" – Gilles de Rais
 * "Bluebeard of Paris" – Henri Désiré Landru
 * "Bluebeard of Quiet Dell" – Harm Drenth Harry Powers
 * "Bluebeard of South Texas" – Joe Ball
 * "Boa" – Sergey Golovkin
 * "Bodenfelde Black Widows" – Pair of German killers active in 1994–2000
 * "Boetie Boer" – Stewart Wilken
 * "Boksburg Killer" – Moses Sithole
 * "Bondage Killer" – Robert Berdella
 * "Boogey Man" – Albert Fish
 * "Boozing Barber" – Gilbert Paul Jordan
 * "Borgia of America" – Martha Wise
 * "Boston Belfry Murderer" – Thomas W. Piper
 * "Boston Strangler" – Albert DeSalvo
 * "Boxcar Killer" – Robert Joseph Silveria Jr.
 * "Bremerhaven Serial Killer" – Olaf Däter
 * "Brick Killer" – Amir Qayyum
 * "Brick Moron" – Robert Nixon
 * "Brides-in-the-Bath Murderer" – George Joseph Smith
 * "Britain’s Own Hannibal" – Robert Maudsley
 * "Brooklyn Strangler" – Vincent Johnson
 * "Brooklyn Vampire" – Albert Fish
 * "Broomstick Killer" – Kenneth McDuff
 * "Brownout Strangler" – Eddie Leonski
 * "B.T.K. Strangler" – Dennis Rader
 * "Bullseye Killer" – John William Cooper
 * "Butcher Baker" – Robert Hansen
 * "Butcher Knife Billy" – Billy Glaze
 * "Butcher of Berlin" – Carl Großmann
 * "Butcher of Elmendorf" – Joe Ball
 * "Butcher of Hanover" – Fritz Haarmann
 * "Butcher of Iași" – Vasile Tcaciuc
 * "Butcher of Mons" – Unsolved
 * "Butcher of Niebuszewo" – Józef Cyppek
 * "Butcher of Plainfield" – Ed Gein
 * "Butcher of Rostov" – Andrei Chikatilo
 * "Butterbox Baby Killers" – Lila and William Young
 * "Buttermilk Bluebeard" – Alfred Leonard Cline

C

 * "Cabo Bruno" – Florisvaldo de Oliveira
 * "Camden Ripper" – Anthony Hardy
 * "Campus Killer" – Ted Bundy
 * "Candlelight Killer" – Robert Liberty
 * "Candyman" – Dean Corll
 * "Cannibal" – Peter Bryan
 * "Cannibal of Ankara" – Özgür Dengiz
 * "Cannibal of Kosovo" – Kosovar serial killer active in 1997–1999
 * "Cannibal of Ziębice" – Karl Denke
 * "Cape Cod Vampire" – Tony Costa
 * "Capital Park Killer" – Samuel Sidyno
 * "Carlos the Jackal" – Ilich Ramírez Sánchez
 * "Caruga of Zagorje" – Vinko Pintarić
 * "Casanova Killer"
 * Paul John Knowles
 * Glen Edward Rogers
 * "Chambermaid Slayer" – Gerald Thomas Archer
 * "Charlie Chop-off" – Unsolved
 * "Chessboard Killer" – Alexander Pichushkin
 * "Chicago Rippers" – Group of Illinois killers
 * "Chijon Family" – Group of Korean killers active in 1994
 * "Chikatilo" – List of Soviet and post-Soviet serial killers nicknamed after Andrei Chikatilo
 * "Choke and Stroke Killer" – Samuel Little
 * "Chopper" – Mark Read
 * "Cincinnati Strangler" – Posteal Laskey
 * "Citizen O" – Anatoly Onoprienko
 * "Clairemont Killer" – Cleophus Prince Jr.
 * "Classified Ad Rapist" – Bobby Joe Long
 * "Cleveland Killer" – Moses Sithole
 * "Cleveland Strangler" – Anthony Sowell
 * "Cleveland Torso Murderer" – Unsolved
 * "Confession Killer" – Henry Lee Lucas
 * "Connecticut Borgia" – Amy Archer-Gilligan
 * "Co-Ed Butcher" – Edmund Kemper
 * "Co-Ed Killer" – John Norman Collins
 * "Corridor Killer" – Steven Brian Pennell
 * "Cop Killer" – Barry Prudom
 * "Costa Killer" – Tony Alexander King
 * "Craigslist Killer" – Richard Beasley
 * "Craigslist Ripper" – Nickname for the Long Island serial killer.
 * "Crazy Charles" – Charles Ray Hatcher
 * "Crazy Dave" – David Edward Maust
 * "Crazy Joe" – Joseph Naso
 * "Cross Country Killer" – Glen Edward Rogers
 * "Crossbow Cannibal" – Stephen Griffiths
 * "Crow Killer" – John Johnson
 * "Cul-De-Sac Killer" – Stephen Akinmurele
 * "Cyanide Mallika" – KD Kempamma
 * "Cyanide Mohan" – Mohan Kumar

D

 * "D.C. Sniper" – John Allen Muhammad and Lee Boyd Malvo
 * "Dallas Ripper" – Charles Albright
 * "Damsel of Death" - Aileen Wuornos
 * "Danilovsky Maniac" – Unsolved
 * "Dark Strangler" – Earle Nelson
 * "Dating Game Killer" – Rodney Alcala
 * "Death Angel" – Robledo Puch
 * "Death Angels" – Group of American killers active in 1969–1974
 * "Demon Midwife" – Miyuki Ishikawa
 * "Demon in the Belfry" – Theodore Durrant
 * "Der Totmacher" – Rudolf Pleil
 * "Detroit Serial Killer" – Benjamin Atkins
 * "Doctor Death"/"Dr. Death"
 * Jack Kevorkian
 * Maxim Petrov
 * Harold Shipman
 * Santosh Pol
 * Christopher Duntsch
 * "Donnybrook Serial Killer" – Christopher Mhlengwa Zikode
 * "Doodler" – Unsolved
 * "Double Initial Killer" – Joseph Naso
 * "Doubles Killer" – Werner Boost
 * "Dracula Killer" – Richard Chase
 * "Duck Island Killer" – Clarence Hill
 * "Duisburg Man-Eater" – Joachim Kroll
 * "Dusseldorf Doubles Killer" – Werner Boost

E

 * "East Area Rapist" – Joseph James DeAngelo
 * "East-Harlem Rapist" – Arohn Kee
 * "East Paris Killer" – Guy Georges
 * "Eastbound Strangler" – Unsolved
 * "Educated Killer" – Edward H. Rulloff
 * "El Coqueta" – César Armando Librado Legorreta
 * "El Cura" – Luis Garavito
 * "El Gato Imperial" – Raúl Osiel Marroquín
 * "Eyeball Killer" – Charles Albright

F

 * "Father Bluebeard" – András Pándy
 * "February 9 Killer" – Unsolved
 * "First Nations Killer" – John Martin Crawford
 * "Flying Nightmare" – Robert Hansen
 * "Forces of Evil" – William Henry Hance
 * "Forest Park (Serial) Killer" – Todd Alan Reed
 * "Forest Strip Killer" – Andrei Chikatilo
 * "Frankford Slasher" – Leonard Christopher
 * "Frankston Killer" – Paula Denyer
 * "Freeway Killer"
 * Vernon Butts
 * William Bonin
 * Patrick Kearney
 * Randy Kraft
 * William Pugh
 * "Freeway Phantom" – Unsolved
 * "French Ripper" – Joseph Vacher

G

 * "Gainesville Ripper" – Danny Rolling
 * "Gansu Ripper" – Gao Chengyong
 * "Gas Man" – Harald Sassak
 * "Gatchina Psychopath" – Vasily Smirnov
 * "Gay Slayer" – Colin Ireland
 * "Genesee County Serial Slasher" – Elias Abuelazam
 * "Genesee River Killer" – Arthur Shawcross
 * "Gentleman Killer" – Władysław Mazurkiewicz
 * "Georgia Black Widow" – Janie Lou Gibbs
 * "Gert" – Gert van Rooyen
 * "Ghoul of Grays Harbor" – Billy Gohl
 * "Giggling Grandma" – Nannie Doss
 * "Glamour Girl Slayer" – Harvey Glatman
 * "Godfather of Matamoros" – Adolfo Constanzo (El Padrino de Matamoros)
 * "Godmother" – Sara Aldrete (La Madrina)
 * "Goiânia Serial Killer" – Tiago Henrique Gomes da Rocha
 * "Golden State Killer" – Joseph James DeAngelo
 * "Good Doctor" – Harold Shipman
 * "Good Lady of Loudun" – Marie Besnard
 * "Gorilla Killer" – Earle Nelson
 * "Granny Killer" – John Wayne Glover
 * "Granny Ripper" – Tamara Samsonova
 * "Gray Man" – Albert Fish
 * "Green Man" – Albert DeSalvo
 * "Green River Killer" – Gary Ridgway
 * "Grim Maniac" – Nikolai Dudin
 * "Grim Reaper of Paris" – Thierry Paulin
 * "Grim Sleeper" – Lonnie David Franklin Jr.
 * "Grocery Bag Killer" – Robert Lee Yates
 * "Guangzhou Ripper" – Li Wenxiang

H

 * "Hairy One" – Augustine Chacon
 * "Hamamatsu Deaf Killer" – Seisaku Nakamura
 * "Hamburg Rubble Murderer" – Unsolved
 * "Hammer Killer" – Norbert Poehlke
 * "Hammer Killer of Frankfurt" – Arthur Gatter
 * "Hannibal" – Scott Lee Kimball
 * "Hannibal Lecter of the Andes" – Dorángel Vargas
 * "Hanover Werewolf" – Fritz Haarmann
 * "Happy Face Killer" – Keith Hunter Jesperson
 * "Headbanger" – Peter Sutcliffe
 * "Heidemörder (Heath Muderer)" – Thomas Holst
 * "Hell's Belle" – Belle Gunness
 * "Hermit of St. Bonnot" – Gilles Garnier
 * "Highway Hooker" - Aileen Wuornos
 * "Highway Killer" – Larry Eyler
 * "Hillside Stranglers" – Kenneth Bianchi and Angelo Buono Jr.
 * "Hippopotamus" – Sergei Ryakhovsky
 * "Hog Trail Murderer" – Daniel Conahan
 * "Holiday Killer" – Ulrich Schmidt
 * "Holloway Stranger" – Tony Alexander King
 * "Hollywood Slasher" – Doug Clark
 * "Homicidal Slasher" – Michael Wayne McGray
 * "Honolulu Strangler" – Unsolved
 * "Human Tiger" – Jean-Baptiste Troppmann
 * "Huttenkloas" – Klaas Annink

I

 * "I-5 Bandit" – Randall Woodfield
 * "I-5 Killer" – Roger Kibbe
 * "Iceman" – Richard Kuklinski
 * "Imperial Avenue Murderer" – Anthony Sowell
 * "Index Killer" – Unsolved 1988 murders in Seattle, United States
 * "Industrial Maniac" – Marcos Antunes Trigueiro
 * "Internet Black Widow" – Melissa Ann Shepard
 * "Internet Slavemaster" – John Edward Robinson
 * "Interstate Killer" – Larry Eyler
 * "Ipswich Ripper" – Steve Wright
 * "Iron Man" – Craig Price

J

 * "Jack the Butcher" – Unsolved
 * "Jack the Ripper"
 * Unsolved 1880s and 1890s murders in London, United Kingdom
 * Unsolved 1911–1912 murders in Atlanta, United States
 * Unsolved 1915 murders in New York, United States
 * "Jack the Strangler"
 * Unsolved 1894–1903 murders in Denver, United States
 * Unsolved 1900s murders in Dayton, United States
 * "Jack the Stripper" – Unresloved
 * "Jackal"
 * Robin Jackson
 * Robledo Puch (El Chacal)
 * "Japanese Bluebeard" – Yoshio Kodaira
 * "Jeffries the Monster" – Thomas Jeffries
 * "Jesse Sitting Crow" – Billy Glaze
 * "Jesus Killer" – Jimmy Maketta
 * "Joel the Ripper" – Joel Rifkin
 * "Jolly Black Widow" – Nannie Doss

K

 * "Kanpatimar" – Shankariya
 * "Kansas City Butcher" – Robert Berdella
 * "Kansas City Strangler" – Lorenzo Gilyard
 * "Kansas City Vampire" – Marc Sappington
 * "Katóka Street Killer" – Gusztáv Nemeskéri
 * "Ken and Barbie Killers" – Paul Bernardo and Karla Homolka
 * "Killer Butler" – Archibald Hall
 * "Killer Clown" – John Wayne Gacy
 * "Killer from the Shadows" – Marcel Barbeault
 * "Killer Handyman" – William Patrick Fyfe
 * "Killer Petey" – Pedro Rodrigues Filho (Pedrinho Matador)
 * "Killing Cousins" – David Alan Gore and Fred Waterfield
 * "Killing Dentist" – Glennon Engleman
 * "Kindly Killer" – Dennis Nilsen
 * "King of the Thugs" – Behram
 * "Kirmes Killer" – Jürgen Bartsch
 * "Kranskop Killer" – Samuel Bongani Mfeka
 * "Krasnoyarsk Beast" – Vadim Ershov
 * "Kukri" – Javed Iqbal

L

 * "La Bestia" – Luis Garavito
 * "Lady Blue Beard" – Nannie Doss
 * "Lady Death" – Daisy de Melker
 * "Lady Dracula" – Elizabeth Báthory
 * "Lady Killer" – Ricardo Caputo
 * "Lainz Angels of Death" – Group of Austrian killers active in 1983–1989
 * "Lake Elsinore Killer" – William Suff
 * "Lambeth Poisoner" – Thomas Neill Cream
 * "Las Poquianchis" – Group of Mexican killers active in 1950s–1960s
 * "Laser Man" – John Ausonius
 * "Last Call Killer" – Richard Rogers
 * "Leather Apron" – Alternate nickname for "Jack the Ripper". Unsolved
 * "Lethal Lovers" – Gwendolyn Graham and Cathy Wood
 * "Limpopo Serial Killer" – Mukosi Freddy Mulaudzi
 * "Limpopo Serial Rapist" – Fanuel Makamu
 * "Lipstick Killer" – William Heirens
 * "Lisbon Ripper" – Unsolved
 * "Little Harpe" – Wiley Harpe
 * "Little Old Lady Killer" – Juana Barraza
 * "Little Peter the Killer" – Pedro Rodrigues Filho (Pedrinho Matador)
 * "Liver-Eating Johnson" – John Johnson
 * "Łódź Gay Murderer" – Unsolved
 * "London Chambermaid Killer" – Gerald Thomas Archer
 * "London Hammer Killer" – Levi Bellfield
 * "Lonely Hearts Killer"
 * Nannie Doss
 * Harvey Glatman
 * "Lonely Hearts Killers" – Raymond Fernandez
 * "Long Beach Bluebeard" – William Johansen
 * "Lust Killer" – Jerry Brudos
 * Ludwig – Wolfgang Abel and Marco Furlan

M

 * "Machete Murderer" – Juan Corona
 * "Macedonian Raskolnikov" – Viktor Karamarkov
 * "Mad Beast" – Andrei Chikatilo
 * "Mad Butcher" – Ed Gein
 * "Mad Butcher of Kingsbury Run" – Also known as the "Cleveland Torso Murderer". Unsolved
 * "Mad Dog"
 * Leslie Irvin
 * Marion Albert Pruett
 * "Mad Killers of Brabant" – Unsolved
 * "Mad Strangler of Boston" – Albert DeSalvo
 * "Maid Killer" – Martin Dumollard
 * "Mail-Order Bluebeard" – Harry Powers
 * "Mall Passer" – Mike DeBardeleben
 * "Man in Black" – Peter Moore
 * "Man with the Hammer" – Romulus Vereș
 * "Manny" – Manuel Pardo
 * "Marahao Boy Mutilator" – Francisco das Chagas Rodrigues de Brito
 * "Marty" – Harrison Graham
 * "Mataviejitas" – Juana Barraza
 * "Meanest Man in America" – Donald Henry Gaskins
 * "Measuring Man" – Albert DeSalvo
 * "Metal Fang" – Nikolai Dzhumagaliev
 * "Mexican Jack" – Macario Alcala Canchola
 * "Mexican Ripper" – Francisco Guerrero Pérez
 * "Midday Murderer" – Klaus Gossmann
 * "Midtown Torso Slasher" – Richard Cottingham
 * "Milwaukee Cannibal" – Jeffrey Dahmer
 * "Milwaukee North Side Strangler" – Walter E. Ellis
 * "Minnie" – Williamina Dean
 * "Mobster of Wyoming" – Mark Allen Hopkinson
 * "Molalla Forest Killer" – Dayton Leroy Rogers
 * "Monster Butler" – Archibald Hall
 * "Monster Killer" – Yang Xinhai
 * "Monster of Aosta" – Andrea Matteucci
 * "Monster of Bolzano" – Marco Bergamo
 * "Monster of Brussels" – Junior Kabunda
 * "Monster of Cannock Chase" – Raymond Leslie Morris
 * "Monster of Czinkota" – Béla Kiss
 * "Monster of Düsseldorf" – Peter Kürten
 * "Monster of Florence" – Unsolved
 * "Monster of Foligno" – Luigi Chiatti
 * "Monster of Machala" – Gilberto Chamba
 * "Monster of Merano" – Ferdinand Gamper
 * "Monster of Miramichi" – Allan Legere
 * "Monster of Montluel" – Martin Dumollard
 * "Monster of Montmartre" – Thierry Paulin
 * "Monster of Montserrat" – Fredy Armando Valencia
 * "Monster of Nerola" – Ernesto Picchioni
 * "Monster of Pont-Rouge" – Léopold Dion
 * "Monster of Rome" – Ralph Brydges
 * "Monster of Sarzana" – Giorgio Vizzardelli
 * "Monster of the Andes" – Pedro López
 * "Monster of the Ardennes" – Michel Fourniret
 * "Monster of the Cane Fields" – Manuel Octavio Bermúdez
 * "Monster of the Rivers" – Arthur Shawcross
 * "Monster of Thuleni" – Bulelani Mabhayi
 * "Monster of Udine" – Unsolved
 * "Monster of Zollikerburg" – Erich Hauert
 * "Monsters of Ecatepec" – Pair of Mexican serial killers active in 2012–2018
 * "Moon Maniac" – Albert Fish
 * "Moors Murderers" – Ian Brady and Myra Hindley
 * "Morumbi Monster" – José Paz Bezerra
 * "Mr. Sam" – Samuel Little
 * "Muswell Hill Murderer" – Dennis Nilsen
 * "Muti Serial Killer" – Moses Sithole

N

 * "Namibia's B1 Butcher" – Unsolved
 * "Nebraska Boy Snatcher" – John Joubert
 * "Nebraska Fiend" – Stephen Dee Richards
 * "Necrophile Rebel" – Mikhail Novosyolov
 * "Night Caller" – Eric Edgar Cooke
 * "Night Demon" – Oleksandr Berlizov
 * "Night Stalker" – Richard Ramirez
 * "Nighttime Killers" – Pair of Ukrainian serial killers active in 1991–1996
 * "Niterói Vampire" – Marcelo Costa de Andrade
 * "Notting Hill Nassen Killer" – John Christie
 * "Novokuznetsk Monster" – Alexander Spesivtsev
 * "Novosibirsk Maniac" – Yevgeny Chuplinsky
 * "Novouralsk Ripper" – Yevgeny Petrov

O

 * "Ogress of Colonia Roma" – Felícitas Sánchez Aguillón
 * "Ogress of Reading" – Amelia Dyer
 * "Old Lady Killer"
 * Juana Barraza
 * Thierry Paulin
 * "Original Night Stalker" – Joseph James DeAngelo
 * "Otaku Murderer" – Tsutomu Miyazaki
 * "Other Baton Rouge Killer" – Sean Vincent Gillis

P

 * "Panama/Costa Rica Serial Killer" – William Dathan Holbert
 * "Pancho López" – Fernando Hernández Leyva
 * "Pangaman" – Elias Xitavhudzi
 * "Papa Denke" – Karl Denke
 * "Patches the Clown" – John Wayne Gacy
 * "Piranha Family" – Group of Japanese serial killers active in 2011
 * "Paris Serial Killer" – Yoni Palmier
 * "Park Maniac" – Francisco de Assis Pereira
 * "Pee Wee" – Donald Henry Gaskins
 * "Peterborough Ditch Murders" – Joanna Dennehy
 * "Phantom Killer" – Unsolved
 * "Phantom of Heilbronn" – Debunked
 * "Phantom Sniper" – Frank Carter
 * "Phoenix Strangler" – Sipho Thwala
 * "Pied Piper" – Dean Corll
 * "Pied Piper of Staten Island" – Andre Rand
 * "Pied Piper of Tucson" – Charles Schmid
 * "Pig Farmer Killer" – Robert Pickton
 * "Pig Man" – Robert Pickton'
 * "Pigheaded Killer" – Robert Pickton
 * "Pillow Killer" – Yvan Keller
 * "Plainfield Ghoul" – Ed Gein
 * "Playing Card Killer" – Alfredo Galán
 * "Pliers" – Lawrence Bittaker
 * "Pogo the Clown" – John Wayne Gacy
 * "Poisoner" – Catherine Monvoisin (La Voison)
 * "Poisoner of Monserrat" – Yiya Murano (La Envenenadora de Monserrat)
 * "Pops" – James Edward Pough
 * "Pork Chop Rob" – Robert Pickton
 * "Potton Poisoner" – Sarah Dazley
 * "Poughkeepsie Killer" – Kendall Francois
 * "Povorino Maniac" – Vladimir Retunsky
 * "Prime Evil" – Eugene de Kock
 * "Psycho Raman" – Raman Raghav
 * "Psycho Shankar" – M. Jai Shankar

Q

 * "Queen of Poisoners" – Marie Besnard
 * "Queen Poisoner" – Lydia Sherman

R

 * "Rae Bareli Serial Killer" – Raman Raghav
 * "Railroad Killer"
 * Ángel Maturino Reséndiz
 * Rudy Bladel
 * Themba Vilakazi
 * "Railway Killers" – John Duffy and David Mulcahy
 * "Railway Sniper" – Rudy Bladel
 * "Rainbow Maniac" – Jairo Francisco Franco
 * "Raincoat Killer" – Yoo Young-chul
 * "Rainy Night Butcher" – Lam Kor-wan
 * "Rambo Bentong" – Rabidin Satir
 * "Ratcliff Highway Demon" – John Williams
 * "Reading Baby Farmer" – Amelia Dyer
 * "Red Phantom" – Alternate nickname of the Zodiac Killer. Unsolved
 * "Red Ripper" – Andrei Chikatilo
 * "Redneck Charles Manson" – Donald Henry Gaskins
 * "Rest Area Killer" – Donald Leroy Evans
 * "Rhein-Ruhr Ripper" – Frank Gust
 * "Ripper Jayanandan" – K. P. Jayanandan
 * "Rio Bravo Assassin" – Pedro Padilla Flores
 * "River Man" – Thozamile Taki
 * "Riverside Killer" – William Suff
 * "Rochester Strangler" – Arthur Shawcross
 * "Rostov Ripper" – Andrei Chikatilo
 * "Ruhr Cannibal" – Joachim Kroll

S

 * "Sacramento Slayer" – Morris Solomon Jr.
 * "Sadist of El Chanquito" – Daniel Camargo Barbosa
 * "Saloon Killer" – Velaphi Ndlangamandla
 * "San Francisco Sex Slayer" – William Johansen
 * "San La Muerte Killer" – Marcelo Antelo (Asesino de San La Muerte)
 * "San Mateo Slasher – Unsolved
 * "Sana’a Ripper" – Mohammed Adam Omar
 * "Santa Strangler" – Adolph Theodore Laudenberg
 * "Sätermannen" – Unsolved
 * "Satyr of San Isidro" – Francisco Antonio Laureana
 * "Saw-Killer of Hanover" – Unsolved.
 * "S-Bahn Murderer" – Paul Ogorzow
 * "Scarborough Rapist" – Paul Bernardo
 * "Schoolgirl Strangler" – Arnold Sodeman
 * "Scorecard Killer" – Randy Kraft
 * "Seashore Serial Killer" – Nickname for the Long Island serial killer. Unsolved
 * "Serial Killer of Merano" – Ferdinand Gamper
 * "Serial Shooters" – Dale Hausner and Samuel Dieteman
 * "Serial Street Shooter" – Unsolved
 * "Servant Girl Annihilator" – Unsolved
 * "Seven Bridges Killer" – Unsolved
 * "Sex Beast" – Melvin Rees
 * "Sex Devil" – Lam Kwok-wai (色魔, Sik Moh)
 * "Shabolovka Street Killer" – Vasili Komaroff
 * "Shadow Killer" – Marcel Barbeault
 * "Shoe Fetish Slayer" – Jerry Brudos
 * "Shoe Maker" – Joseph Kallinger
 * "Shotgun Killer" – Christopher Peterson
 * "Shotgun Man" – Unsolved
 * "Shotgun Stalker" – James Swann
 * "Siberian Ripper" – Alexander Spesivtsev
 * "Sidetrack" – Robert Joseph Silveria Jr.
 * "Singing Serial Killer" – K. P. Jayanandan
 * "Singing Stranger" – Eddie Leonski
 * "Sister Godfrida" – Cecile Bombeek
 * "Skid Row Slasher" – Vaughn Greenwood
 * "Skid Row Slayer" – Michael Player
 * "Skin Hunters" – Group of Polish killers, active in the early 2000s
 * "Slavemaster" – John Edward Robinson
 * "Sleepy Hollow Killer" – Unsolved
 * "Slitter of Women’s Throats" – Francisco Guerrero Pérez
 * "Smelly Bob" – Robert Black
 * "Smolensky Strangler" – Vladimir Storozhenko
 * "Soap Maker of Correggio" – Leonarda Cianciulli
 * "Son of Sam" – David Berkowitz
 * "Sons of Death" – Nickname for the Thuggee cult
 * "Southern California Strangler" – Randy Kraft
 * "Southland Strangler" – John Floyd Thomas Jr.
 * "Southside Rapist" – Timothy Wilson Spencer
 * "Speed Freak Killers" – Pair of American killers active in 1984–1990
 * "Spider Killer" – Saeed Hanaei
 * "Spokane Serial Killer" – Robert Lee Yates
 * "Springfield Strangler" – Alfred Gaynor
 * "Station Strangler" – Norman Afzal Simons
 * "Stocking Strangler" – Carlton Gary
 * "Stockwell Strangler" – Kenneth Erskine
 * "Stoneman" – Unsolved 1985–1989 Indian murders
 * "Strangler Bill" – Wayne Boden
 * "Strangler of Aachen" – Egidius Schiffer
 * "Strangler of Valpocevera" – Maurizio Minghella
 * "Suffolk Strangler" – Steve Wright
 * "Sugarcane Serial Killer" – Thozamile Taki
 * "Suicide Website Murderer" – Hiroshi Maeue
 * "Sunday Morning Slasher" – Carl Eugene Watts
 * "Sunderland Slayer" – Steven Grieveson
 * "Sunset Strip Killers" – Doug Clark and Carol Bundy
 * "Svietlahorsk Nightmare" – Igor Mirenkov
 * "Sydney Mutilator" – William MacDonald

T

 * "Taco Bell Strangler" – Henry Louis Wallace
 * "Tacoma Axe Murderer" – Jake Bird
 * "Tamiami Strangler" – Rory Enrique Conde
 * "Terminator" – Anatoly Onoprienko
 * "Terror of Brandenburg Forest" – Willi Kimmritz
 * "Thrill Killer" – Richard Biegenwald
 * "Thug Behram" – Behram
 * "Timber Town Killer" – Billy Gohl
 * "Tipster killer" – Robert Maury
 * "Tool Box Killers" – Lawrence Bittaker and Roy Norris
 * "Torso Killer" – Richard Cottingham
 * "Torture Doctor" – H. H. Holmes
 * "Toy-Box Killer" – David Parker Ray
 * "Trailside Killer" – David Carpenter
 * "Trash Bag Killer" – Patrick Kearney
 * "Tribilin" – Luis Garavito
 * "Tube Sock Killer" – Unsolved
 * "Truck Stop Killer"
 * Bruce Mendenhall
 * Robert Ben Rhoades
 * "Twitter Killer" – Takahiro Shiraishi

U

 * "Unabomber" – Ted Kaczynski
 * "Ust-Kamenogorsk Maniac" – Yuri Ivanov

V

 * "Valley Intruder" – Richard Ramirez
 * "Vampire Killer"
 * John Brennan Crutchley
 * John Haigh
 * Dio Brando
 * "Vampire of Argentina" – Florencio Fernández
 * "Vampire of Bucharest" – Ion Rîmaru
 * "Vampire of Bytów" – Leszek Pękalski
 * "Vampire of Düsseldorf" – Peter Kürten
 * "Vampire of Gałkówek" – Stanisław Modzelewski
 * "Vampire of London" – John Haigh
 * "Vampire of Niterói" – Marcelo Costa de Andrade
 * "Vampire of Sacramento" – Richard Chase
 * "Vampire Rapist" – Wayne Boden
 * "Vampires of the Tehran Desert" – Mohammed Bijeh
 * "Vienna Strangler" – Jack Unterweger
 * "Volga Maniac" – Radik Tagirov
 * "Voroshilovgrad Maniac" – Zaven Almazyan

W

 * "Walk-In Killer" – Richard Ramirez
 * "Want-Ad Killer" – Harvey Carignan
 * "Warwick Slasher" – Craig Price
 * "Weekend Murderer" – Milton Johnson
 * "Weepy Voice Killer" – Paul Michael Stephani
 * "Wemmer Pan Killer" – Cedric Maake
 * "Werewolf" – Mikhail Popkov
 * "Werewolf Butcher" – Jack Owen Spillman
 * "Werewolf of Dole" – Gilles Garnier
 * "Werewolf of Wysteria" – Albert Fish
 * "West Virginia Bluebeard" – Harry Powers
 * "West-End Serial Killer" – Jack Mogale
 * "Westside Rapist" – John Floyd Thomas Jr.
 * "Whitechapel Murderer" – Alternate nickname for "Jack the Ripper". Unsolved
 * "Window cleaner from Deurne" – Stephaan Du Lion
 * "Witch Doctor" – Adolfo Constanzo
 * "Witch of Corregio" – Leonarda Cianciulli
 * "Wolf Man" – Michael Lupo
 * "Wolf of Moscow" – Vasili Komaroff
 * "Woodford Slasher" – John Joubert
 * "Woodward Corridor Killer" – Benjamin Atkins

Y

 * "Yorkshire Ripper" – Peter Sutcliffe
 * "Yosemite (Park) Killer" – Cary Stayner
 * "Ypsilanti Ripper" – John Norman Collins

Z

 * "Zama Suicide Pact Killer" – Takahiro Shiraishi
 * "Zardad's Dog" – Abdullah Shah
 * "Zodiac (Killer)"
 * Unsolved 1960s–1970s American murders
 * Heriberto Seda