P5

P5 may refer to:

In science and technology

 * 311P/PANSTARRS, also known as P/2013 P5 (PANSTARRS), an asteroid discovered by the Pan-STARRS telescope on 27 August 2013
 * P5 Truss Segment, an element of the International Space Station
 * Period 5 of the periodic table of elements
 * Styx (moon), the fifth moon of the dwarf planet Pluto
 * Particle Physics Project Prioritization Panel, a scientific funding advisory group in the United States
 * Pregnenolone, a steroid hormone

Vehicles

 * P-5 Hawk, a 1923 aircraft
 * Martin P5M Marlin, a flying boat
 * Rover P5 (commonly called 3-Litre and 3½ Litre), a group of automobiles produced from 1958–1973
 * Palatine P 5, a 1908 locomotive
 * PRR P5, mixed-traffic electric locomotives constructed 1931–1935
 * Protegé5, a 5-door sport-wagon produced by Mazda from 2002–2003
 * Polikarpov P-5, Soviet passenger aircraft, modification of the R-5

In computing

 * P5 Glove, an input device for human-computer interaction
 * P5 (microarchitecture), a fifth-generation central processing unit introduced in 1993
 * System p5, a family of servers and workstations created by IBM in 2005
 * p5.js is the JavaScript port of Processing
 * Perl, version 5

Weapons

 * P-5 Pyatyorka, a 1959 anti-shipping missile of the Soviet Union
 * Walther P5, a pistol made by German arms maker Walther in the 1970s

In arts and entertainment

 * P5 (comics), a comic strip also known as Class Act, in the UK comic The Dandy
 * Persona 5, a 2016 video game from Atlus

In music

 * Perfect fifth, a music interval
 * Pizzicato Five, a Shibuya-kei group

Other uses

 * Copa Airlines Colombia (formerly AeroRepublica), IATA airline code P5
 * The five permanent members of the United Nations Security Council
 * P5+1, the five permanent members of the UN Security Council plus Germany
 * Norrbotten Armoured Battalion, designated P 5, a Swedish Army armored battalion active since 1957
 * Power Five conferences, in American college football