Daigo is both a masculine Japanese given name and a surname. Notable people with the name include:
Surname:
Daigo Fuyumoto (1648–1697), Japanese court noble who founded the family branchNaoyuki Daigo (born 1981), Japanese high jumperTadashige Daigo (1891–1947), Imperial Japanese Navy admiral during World War IIToshirō Daigo (born 1926), Japanese 10th dan judokaGiven name:
Daigo Hisateru (1937–1983), Japanese sumo wrestlerDaigō Kenshi (born 1952), Japanese sumo wrestlerDaigo Kobayashi (born 1983), footballerDaigo Matsuura (born 1969), Japanese politicianDaigo Saito (born 1980), Japanese professional drifting driverDaigo Umehara (born 1981), Japanese professional video gamerDaigo (musician) (born 1978), Japanese musician, main vocalist of Breakerz