Kei Haneoka (羽岡 佳, Haneoka Kei, August 5, 1977) is a Japanese composer and arranger from Tokyo. He is affiliated with Creek, Ltd., and is an associate composer in Nichion.

After graduating from Nihon University College of Art, Department of Music (composition major), he worked on composition of instrumental works for TV, radio, commercials and stage. After that, he began to compose pop-related works. Some of his major compositions include the soundtracks for the drama / movie “Team Batista Series”, the drama “GTO” (2014, 2012), “bad money”, “trembling cow”, “criminal look”, “RESCUE special altitude” "Rescue Team", movie "Real-Complete Emirates Day-", Super Sentai Series "Furoku Sentai Tokyuja", Anime "Samurai Monogatari", "Negima !?" In addition, Daiki Ise, Dong Bang Shin Ki, Tackey & Tsubasa, Yoshio Inoue, ZONE, Hiki Shiina, and other pop works are also offered to many artists.

JASRAC member since April 2003.