Who or WHO may refer to:
- Who (pronoun), an interrogative or relative pronoun
- Who?, one of the Five Ws in journalism
Arts and entertainment
Fictional characters
- Who, a creature in the Dr. Seuss book Horton Hears a Who!
- Who, a creature in the Dr. Seuss book How the Grinch Stole Christmas!
- Who, a first baseman in the Abbott and Costello routine "Who's on First?"
Film
- Who (film), a 2018 Indian film
- Who? (film), a 1974 English film adaptation of Algis Budrys' novel (see below), directed by Jack Gold
Music
- The Who, an English rock band
Albums
- Who (album), by The Who, 2019
- Who? (album), by Tony! Toni! Toné!, 1988
Songs
- "Who?" (song), a 1925 popular song written by Jerome Kern, Otto Harbach and Oscar Hammerstein II
- "Who", by David Byrne and St. Vincent from Love This Giant
- "Who", by Diana Ross from Silk Electric
- "Who", by Disturbed from Immortalized
- "Who", by Neil Cicierega from Mouth Moods
- "Who", by Sugababes, a B-side of the single "Hole in the Head"
- "Who", by Zayn from the 2016 film Ghostbusters
- "Who...", by Ayumi Hamasaki from Loveppears
- "Who", written by Irving Berlin
Other media
- WHO (AM), a radio station in Des Moines, Iowa, US
- WHO-DT, a television station in Des Moines, Iowa, US
- Who (magazine), an Australian entertainment magazine
- Who? (novel), a 1958 novel by Algis Budrys
Organizations
- World Health Organization
- White House Office, an entity within the Executive Office of the President of the United States
- Washington Homeschool Organization, in the state of Washington, US
Other uses
- Jim Neidhart (1955–2018), American professional wrestler with the ring name Who
- who (Unix), a Unix command
See also
- Doctor Who (disambiguation)
- Guess Who (disambiguation)
- Hoo (disambiguation)
- Hu (disambiguation)
- Woo (disambiguation)
- Who? Who? ministry, a 19th-century British government
- Who's Who, several reference publications