Starsailor is the sixth studio album by Tim Buckley, released on Herb Cohen's Straight Records label in November 1970. Starsailor marks Buckley's full embrace of avant-garde and jazz-rock styles into his music. Although it alienated elements of his fanbase upon release, it also contains his best known song, "Song to the Siren", which was written much earlier than the rest of the material. Bunk Gardner, a former member of the Mothers of Invention, joined Buckley's backing band to record the album. Also, Buckley began working again with lyricist Larry Beckett, after a three-album hiatus.

Timothy Charles Buckley III was an American musician. He began his career based in folk rock, but subsequently experimented with genres such as psychedelia, jazz, the avant-garde, and funk paired with his unique five-octave vocal range. His commercial peak came with the 1969 album Happy Sad, reaching No. 81 on the charts, while his experimental 1970 album Starsailor went on to become a cult favorite. The latter contained his best known song, "Song to the Siren." Buckley died at the age of 28 from a heroin and morphine overdose, leaving behind sons Taylor and Jeff.