"Surfin'" is a song by American rapper Kid Cudi. It was released on September 30, 2016, as the lead single from his sixth studio album, Passion, Pain & Demon Slayin'. The lyrics were handled by Cudi, while the music was written and produced by Pharrell Williams, who also makes a vocal appearance on the extended outro of the album version of the song. The song was later included on Cudi’s first greatest hits album The Boy Who Flew to the Moon, Vol. 1 (2022).