Buster can mean one of several things:
- Buster, a British comic.
- Buster, a movie starring Phil Collins as the real-life Buster Edwards.
- Buster, a dog belonging to Roy Hattersley, who has published his diaries (ghost written by Hattersley).
- Buster (Jeffrey Wayne Cole), a star of gay pornographic films.
- Buster Baxter, frequently identified as "Buster the Bunny", star of Postcards from Buster and originally from the show Arthur.
- Buster Bunny, a character from Tiny Toon Adventures.
- Buster Poindexter, a pseudonym of David Johansen.
- Buster, a derogatory term for a person who pretends they are gang affiliated.
- Buster the crash test dummy from the popular mythbreaking popular-science show, MythBusters.
- Buster Boats, a finnish manufacturer of high quality aluminum boats. The company is owned by Inha Works Ltd, which is a part of the Fiskars-group.
- A USA term of address.
It has two possible etymologies:-
- Agent noun of the verb bust.
- From Spanish busté, a dialect form of usted = "you".