4 is a number, numeral, and digit.

4 or four may also refer to:

Months and years AD 4, the fourth year of the AD era 4 BC, the fourth year before the AD era 1904 2004 2104 The month of April

Places Four, Isère, a French commune 4th arrondissement of Paris, an administrative district of Paris, France

Transport 4 (New York City Subway service), service schedule BMW 4 Series, a series of luxury compact executive cars Renault 4, a subcompact family car Polestar 4, an electric SUV Buick Four, a series of luxury cars Oakland Four, a passenger car Line 4

Film, television and radio 4 (2004 film), a Russian drama film directed by Ilya Khrzhanovsky 4 (2007 film), an Australian documentary film directed by Tim Slade Four (2011 film), a British film directed by John Langridge Four (2012 film), an American romantic drama film directed by Joshua Sanchez Four (TV series), an Indian soap opera RTL 4, a Dutch television channel Channel 4, a British television channel BBC Radio 4, a British radio station Four (New Zealand TV channel), a New Zealand television channel News 4 New York, a flagship newscast broadcast on WNBC-TV in New York City I Am Number Four, a novel, adapted into a 2011 film of the same name The Four: Battle For Stardom, a 2018 American music reality series

Fictional characters Four, the nickname of the fictional character Tobias Eaton in the Divergent series of books Four, a character from the fourth season of Battle for Dream Island, an animated web series Number Four (Battlestar Galactica), or Simon, a Cylon model in the re-imagined Battlestar Galactica series Numbuh 4, a fictional character in Codename: Kids Next Door

Music #4, American musician a.k.a. James Root Four Four, an Australian independent record label

Albums 4 (Aitch album), 2025 4 (Beyoncé album), 2011 4 (Dungen album), 2008 4 (Foreigner album), 1981 4 (Fourplay album), 1998 :4 (Galliano album), 1996 4 (Gerling album), 2006 4 (Johan album), 2009 4 (Kumbia Kings album), 2003 4 (Lead album), 2006 4 (Los Hermanos album), 2005 4 (Slash album), 2022 4 (Supersilent album), 1998 4 (The Telescopes album) 2022 4 (Whigfield album), 2002 Four (Bleu album), 2010 Four (Bloc Party album), 2012 Four (Blues Traveler album), 1994 Four (Fair Warning album), 2000 Four! (Hampton Hawes album), 1958 Four (Joe Henderson album), 1968 Four (One Direction album), 2014 Four (Seaweed album), 1993 4 (Matisse EP), 2003 Four (Charlotte Church EP), 2014 Four (Acts of Love), by Mick Harvey, 2013 Fourth (album), by Soft Machine, 1971 No. 4 (album), by Stone Temple Pilots, 1999 #4 (album), by Ling tosite Sigure, 2005 4: John Paul George Ringo, a 2014 compilation EP featuring songs by John Lennon, Paul McCartney, George Harrison and Ringo Starr 4, a 1984 album by Lipps Inc. 4, a 2010 album by The Bamboos 4, a 2014 album by The Red Jumpsuit Apparatus, 2014 4, an EP by Hunter, 2004 #4, an EP by Suburban Kids with Biblical Names, 2009 4 (Hitorie compilation), 2020

Songs "4", by Aphex Twin from Richard D. James Album, 1996 "Four", by Lit from A Place in the Sun, 1999 "Song 4", by Babymetal from Babymetal, 2014 "Four" (composition), composition credited to Miles Davis which he first recorded in 1954

Other uses 4, occasionally used in acronyms to mean the word "for" 4 (axiom), an axiom in modal logic Four (drink), a beverage Four, scoring ("boundary") situation in cricket FOUR score, a method of quantifying coma Fours (Enneagram of Personality), a psychological type of the Enneagram of Personality Four (comics), fictional characters in Planetary 4 Vesta, the second-largest asteroid after Ceres in the asteroid belt

Similar glyphs , symbol for Jupiter Ч, Che (Cyrillic), a letter of the Cyrillic alphabet Ɥ, an IPA symbol for the labialized palatal approximant Կ and its lower case, Վ, letters of the Armenian alphabet

See also IV (disambiguation) 04 (disambiguation) Coxed four and coxless four, types of competitive rowing boat Dufour/Defour/Du Four/De Four (disambiguation) Fourth (disambiguation) Fantastic Four Gang of Four (disambiguation) Number Four (disambiguation) Plus four (disambiguation) The Four (disambiguation) Type 4 (disambiguation) Year Four