Y (disambiguation)

Y, or y, is the twenty-fifth letter of the English alphabet.

Y or y may also refer to:

Places

 * Y, Alaska, US
 * Y, Somme, France
 * Y (river), a river in northern Russia
 * Postal code Y indicating Yukon (see List of Y postal codes of Canada)

Comics

 * Y: The Last Man, a DC comics series by Brian K. Vaughan

Film and television

 * Y (2017 film), a Malayalam film directed by Sunil Ibrahim
 * Y (2022 film), an Indian Marathi-language thriller film
 * Y, the production code for the 1966 Doctor Who serial The Celestial Toymaker
 * Y?, An educational children's science program shown on the Nine Network in Australia
 * Y: The Last Man (TV series), an American drama based on the comic book series Y: The Last Man

Games

 * Y (game), a board game played on a triangular board
 * Pokémon Y, a video game for the Nintendo 3DS

Literature

 * Y (novel), a 2012 novel by Marjorie Celona
 * "Y", a poem by Patti Smith from her book Early Work (1994)
 * "Y" Is for Yesterday, the twenty-fifth and final novel in Sue Grafton's "Alphabet mystery" series, published in 2017

Albums

 * Y (EP), a single album by MBLAQ
 * Y (The Pop Group album), an album by The Pop Group
 * Y. (Bebe album), an album by Spanish singer Bebe
 * Y, a repackaged edition of I, by Jaejoong
 * 01011001 (binary number for 'Y' in ASCII), an album by Dutch progressive metal project Ayreon

Songs

 * "y", a 2010 song by iamamiwhoami from the album bounty
 * "Y..." a track on Belanova's Cocktail
 * "Y", a 1961 song composed by Mario de Jesús Báez which has been covered by several artists including Luis Miguel on the album Vivo (2000)
 * "Y", a 2021 song by Citizen Queen

Economics and finance

 * ¥, the symbol for Japanese yen
 * Y, the symbol for income

Enterprises and brands

 * Alleghany Corporation, NYSE ticker symbol Y
 * Brigham Young University, commonly known throughout the Mormon Corridor as "the Y" (as its rival, the University of Utah, is known as "the U")
 * Y Combinator (company), American seed brand
 * Y-Front a trademark for briefs by Jockey International, used in Britain as a synonym of briefs
 * YM-YWHA, aka "the Y"
 * YMCA, aka "the Y"
 * YWCA, aka "the Y"

Language

 * Y (Cyrillic)
 * y (IPA), the IPA letter for a close front rounded vowel

Mathematics

 * Y combinator, a fixed-point combinator in combinatory logic
 * Y, the Bessel function
 * Y, dependent variable
 * Y or y, vertical axis in the Cartesian coordinate system

Science

 * Y, admittance, the inverse of electrical impedance Z
 * Haplogroup Y (mtDNA)
 * Hyperon
 * Luminance (video), in many video color models, such as YIQ and YUV
 * Tyrosine, abbreviated Y or Tyr
 * Y boson
 * Y chromosome
 * y, year, a non-SI abbreviation for this unit of time
 * Yellow, in the CMYK color model
 * y, yocto-, the SI prefix for 10−24
 * Y, yotta-, the SI prefix for 1024
 * Yttrium, symbol Y, a chemical element
 * Y, a hypothetical stellar class of ultra-cool dwarf stars

Transportation and travel

 * Y (New York City Subway service), an unused New York City Subway service label
 * Tokyo Metro Yurakucho Line, a subway service operated by the Tokyo Metro, labeled Logo of Tokyo Metro Yūrakuchō Line.svg
 * Yotsubashi Line, a subway service operated by the Osaka Metro, labeled Osaka Metro Yotsubashi line symbol.svg
 * Basque Y, a Spanish high-speed rail network so called for its Y shape
 * Y, code for economy class
 * Yaesu Route of Shuto Expressway in Tokyo, Japan, numbered as Route Y
 * JRW hiro-Y.svg, the official West Japan Railway Company service symbol for the Kure Line.

Other uses

 * Ⓨ, a typographical symbol in Japanese resale price maintenance
 * Generation Y
 * Y-shape, the shape that resembles the letter Y
 * Y-stations, World War 2 listening stations
 * Yankee, the military time zone code for UTC−12:00
 * Aion Y, a Chinese electric SUV