The Avant-Garde is an album credited to jazz musicians John Coltrane and Don Cherry, released in 1966 on Atlantic Records, catalogue SD 1451. It features Coltrane playing the compositions of Ornette Coleman accompanied by the members of Coleman's quartet: Cherry, Charlie Haden and Ed Blackwell. It is assembled from unissued results of two separate recording sessions at the Atlantic Studios in New York City in 1960. As Coltrane's fame grew during the 1960s long after he had stopped recording for the label, Atlantic, like Prestige before it, used unissued recordings to create new marketable albums without Coltrane's input or approval. This is the last known album by John Coltrane in this category, and only the second collaboration in this category of recordings.