Goku is the name of the protagonist of the popular "Dragon Ball" manga series, which was turned into a live action film. The character of Goku is reportedly based on Sun Wukong, the hero of the Chinese legend Journey to the West.
Goku, the main protagonist of the manga/anime series "Dragon Ball Z" and its spin-offs
@Love_That_Goku, the Twitter of man who simply loves Goku of Dragon Ball fame
Goku, the name of Jena's pet frog in "Wildwood Dancing" by Juliet Marillier