"Skippy" is an instrumental jazz composition by Thelonious Monk, who is its sole credited writer. It was recorded on 30 May 1952 by the Thelonious Monk Sextet during a Genius of Modern Music session and first issued by Blue Note on a 10-inch 78 rpm single (catalogue number 1602), coupled with "Let's Cool One". It later appeared on Mosaic and Blue Note compilations. The title refers to Evelyn, the sister of Nellie Monk.
The tune has a 32-bar ABAC form and is built on cycling dominant chords or their tritone substitutions. Its tonality stays hidden until the last four bars, which establish A-flat major. Its changes are commonly said to derive from Monk's reharmonization of Vincent Youmans' "Tea for Two", although Ethan Iverson argues that Monk composed "Skippy" first. The piece has been popular since the 2000s, and versions by Steve Lacy, Anthony Braxton, Brad Mehldau and Abdullah Ibrahim are among the most notable later recordings.
