Johnnie Allan (born John Allen Guillot, March 10, 1938) is an American pioneer of the swamp pop musical genre.

[2] Born in Rayne, Louisiana, United States,[2] Allan, a Cajun, grew up in a musical family, and at age six obtained his first guitar.

[3]) By age 13, Allan was playing with Walter Mouton and the Scott Playboys, a traditional Cajun music band.

He returned to the Jin label in the early 1970s and went on to record many notable swamp pop tunes, including his versions of Chuck Berry's "Promised Land" and Merle Haggard's "Somewhere on Skid Row".

[2] He is author of two music-related books, Memories: A Pictorial History of South Louisiana Music (1988) and Born to Be a Loser (1992, with Bernice Larson Webb), a biography of swamp pop musician Jimmy Donley.