Steve Riley and the Mamou Playboys are an American Cajun band from southern Louisiana.

Riley is a native of Mamou, Louisiana and a cousin of the noted Cajun musician and accordion builder Marc Savoy.

Their style has grown from exclusively traditional music of Riley's mentors Dewey Balfa, Belton Richard, and Walter Mouton to a more personal style that still has a distinctively Cajun sound.

[3] David Greely retired from the band due to hearing problems.

Steve Riley and the Mamou Playboys have been nominated for two Grammy Awards in The Best Traditional Folk Album category, one Grammy nomination was for Trace of Time for Best Traditional Folk Album,[5] and the second was for Bon Rêve in 2004.