Tommy McLain (born March 15, 1940) is an American swamp pop musician, best known as a singer but who also plays keyboards, drums, bass guitar, and fiddle.

McLain continues to perform in the American Deep South with his backing group, the Mule Train Band.

Plans are in the works for McLain to rejoin Larry Lange to record another album with the Lonely Knights.

[citation needed] The award-winning British artist Lily Allen, included Tommy McLain's cover of Fats Domino's song "Before I Grow Too Old", as one of her eight favorite songs on the popular British radio programme, Desert Island Discs, on 29 June 2014.

[5] This collaboration included 11 songs written by McLain and credits with numerous others including Elvis Costello, Nick Lowe (both of whom contribute co-writes), plus Jon Cleary, Denny Freeman, Ed Harcourt, Roy Lowe, Augie Meyers, Ivan Neville, Van Dyke Parks, Mickey Raphael, Steve Riley, Speedy Sparks, Warren Storm and others.