L.A.M.F. (abbreviation of Like a Motherfucker) is the only studio album by the American punk rock band The Heartbreakers, which included Johnny Thunders, Jerry Nolan, Walter Lure and Billy Rath. It was released on October 3, 1977 by the British independent record label Track Records, and the music of the album is a mixture of punk and rock and roll.

In a 1977 interview in the UK monthly magazine ZigZag, Thunders said the album title originated from New York gang graffiti. Thunders claimed the gangs would add the LAMF tag after writing their gang name. However, if they were on another gang's territory they would write "D.T.K.L.A.M.F" (Down to Kill Like a Mother Fucker). The original, vinyl release of the album has been criticised for having a lackluster sound despite several attempts to remix it.