Brian Keenan

Brian Keenan may refer to:
 * Brian Keenan (Irish republican) (1942–2008), Provisional Irish Republican Army member
 * Brian Keenan (musician, born 1943) (1943–1985), American musician
 * Brian Keenan (musician, born 1982), American musician
 * Brian Keenan (writer) (born 1950), Belfast writer held as a hostage in Lebanon from 1986 to 1990