Keigo (written: 敬吾, 敬悟, 奎吾, 圭吾, 桂吾, 桂悟, 啓吾, 啓悟 or 慶悟) is a masculine Japanese given name. Notable people with the name include:
Keigo Abe (阿部 圭吾) (born 1938), Japanese karatekaKeigo Higashi (東 慶悟) (born 1990), Japanese footballerKeigo Higashino (東野 圭吾) (born 1958), Japanese writerKiyoura Keigo (清浦 奎吾) (1850–1942), Japanese politicianKotokasuga Keigo (琴春日 桂吾) (born 1977), Japanese sumo wrestlerKeigo Masuya (桝屋 敬悟) (born 1951), Japanese politicianKeigo Numata (沼田 圭悟) (born 1990), Japanese footballerRyōan Keigo (了庵 桂悟) (1425–1514), Japanese Zen Buddhist monk and diplomatKeigo Seki (関 敬吾) (1899–1990), Japanese folkloristKeigo Shimizu (清水 啓吾) (born 1939), Japanese swimmerKeigo Sonoda (園田 啓悟) (born 1990), Japanese badminton playerKeigo Yamashita (山下 敬吾) (born 1978), Japanese Go player