Definitive Swim is a free download album released in 2007 by hip-hop label Definitive Jux in collaboration with animation channel Adult Swim and Old Spice. The compilation contains unreleased music from the majority of the label's current roster.

The announcement of the compilation was also used to launch the video for El-P's single "Flyentology", which was animated by Williams Street animators Daniel Garcia and Nathan Love.

It is to be noted that all of the tracks are the edited versions.