FBI is the commonly used acronym for the United States Federal Bureau of Investigation. FBI may also refer to:

Fiji Born Indian referring to people of Indian origin who were born in Fiji.

Full Blooded Italians, a professional wrestling stable

FBi Radio, a community radio station based in Sydney, Australia

The F.B.I. (TV series), a television series based in part on actual FBI cases

Federation of British Industries

FBI mnemonics, for describing directions in magnetic fields

The FBI Story is a 1959 film about the Federal Bureau of Investigation

Flying Buffalo, a game publisher

Fizz and Boog Inc. a record label

Flesh Bone Incorporated an American record label