Buster \b(u)-ster, bus-ter\ as a boy's name is of English origin. Derived from the word "bust", from "burst". Nickname made famous by silent film celebrity Buster Keaton. Also a hugely popular comic strip character of the 1930s called Buster Brown, and the brand of a shoe with a well-known advertising jingle in the early 1960s. Swimmer/actor Buster Crabbe.

Similar baby names are Baxter, Caster, Kester, Coster, Foster, Lester, Nester, Vester and Wister.