Founded in 1998 by a few internationals including current Chairman Ian Woodcock, Manhattan Celtic earned promotions in the Cosmopolitan Soccer League reaching the first division 10 years later. With success came growing interest and the addition of an Over 30 team that earned its first titles after three years. With membership passing 100 members, a second Over 30 was added and the teams competed as the Celtic Legends and the Celtic Bhoys. In recent years, the club membership swelled to close to 200 members with the addition of the Celtic Masters (Over 40) and the Celtic Aces (women).
Manhattan Celtic FC is a not-for-profit 501c7 organization.