[citation needed] In 1957, Killeagh contested the East Cork Junior A hurling title for the first time but lost to a St. Catherines combination.

[citation needed] Ten years later, in 1967, the club won the East Cork final by defeating rivals Castlemartyr after a replay.

[citation needed] In 1999, Killeagh clubman Mark Landers captained Cork to win the Liam MacCarthy Cup and had as his teammates Joe Deane and subkeeper Bernard Rochford.

[citation needed] Killeagh were crowned Cork Intermediate Hurling Championship winners when defeating Mallow in a replayed final at Páirc Uí Chaoimh in 2001.

[citation needed] Séamus Harnedy, later captain of the Cork county hurling team, played with Killeagh through the underage ranks when they were Killeagh/Ita's.