Keito Okamoto (岡本 圭人, Okamoto, Keito, born April 1, 1993) is a Japanese singer and former member of Hey! Say! JUMP. He is under the management of Johnny & Associates. He was born in Tokyo to Kenichi Okamoto, a former member of the rock band & Johnny's group, Otokogumi and model, Katsue Nishi.
He was educated at Framlingham College in England before returning to the Tokyo Metropolitan Area, and is the only member of Hey! Say! JUMP who speaks fluent English. He, occasionally, plays guitar along with Kota Yabu and Hikaru Yaotome in their concerts.