Jacknife is an album by American saxophonist Jackie McLean.

They were originally given the catalogue number of BLP 4223 and BLP 4236, but were shelved for ten years and issued together in 1975 as a double LP, with the number BN-LA457-H2.

[1] Whilst the 1965 tracks were released on a limited edition CD in 2002, those from 1966 have never been released singularly; however, they can be found on the four-disc Mosaic compilation The Complete Blue Note 1964–66 Jackie McLean Sessions, which was limited to 5,000 copies.

The Allmusic review by Michael G. Nastos awarded the album 3½ stars and stated: "The single CD (1–5) is quite worthwhile by itself, but tells only half of the story.

"[2] Tracks 1–5 recorded on September 24, 1965.