Okabe (written: ) is a Japanese surname. Notable people with the surname include:

, Japanese politician , Japanese music composer , Japanese World War II flying ace , Japanese electrical engineer and scientist , Japanese judge , Japanese samurai , Japanese general , Japanese architect , Japanese singer , Japanese general , Japanese engineer and assistant of Thomas Edison , Japanese swimmer

Fictional characters Keiko Okabe, a character in the novel Hotel on the Corner of Bitter and Sweet , protagonist of the visual novel Steins;Gate