First Session is an album by American jazz guitarist Grant Green featuring performances recorded in 1960 and 1961 but not released on the Blue Note label until 2001.

Green is supported by pianist Wynton Kelly, bassist Paul Chambers and drummer ”Philly” Joe Jones.

Also included on the album are two takes from a later 1961 session that feature pianist Sonny Clark, bassist Butch Warren and drummer Billy Higgins.

The AllMusic review by Ronnie D. Lankford, Jr. awarded the album 4 stars and stated: "Whatever hesitation Green may have felt as a first time leader, the warmth and immediacy of his style arrives in full bloom.

First Session is a lively portrait of a jazz great, surrounded by the best musicians in the business, getting his feet wet.