"Little Green" is a song composed and performed by Joni Mitchell, from her 1971 album Blue. It was written in 1967 about the daughter she was forced to give up for adoption as a poor art-school student at Calgary, Alberta.

Mitchell commented on the situation in an interview quoted in a 1998 article: The song showcases Mitchell's sensitivity and was re-written a number of times before its release.

The guitar tuning with which Joni plays the song is D G D G B D.

Mitchell was subsequently reunited with her daughter, Kilauren Gibb, by a Toronto pub owner in 1997. (The pub owner was an old friend of Mitchell's from her Yorkville coffeehouse days in the late 1960s; Gibb was a regular customer of the pub.)