"Itchycoo Park" is a song written by Steve Marriott and Ronnie Lane, first recorded by their group, the Small Faces.

The song was one of the first pop singles to use flanging, an effect that can be heard on the drums in the bridge section after each chorus.[8] Most sources credit the use of the effect to Olympic Studios engineer George Chkiantz who showed it to the Small Faces regular engineer Glyn Johns; he in turn demonstrated it to the group, who were always on the lookout for innovative production sounds, and they readily agreed to its use on the single.