Naomh Mearnóg is a Gaelic Athletic Association club in the parish of Portmarnock, County Dublin, Ireland. The club was founded in 1975 and now fields a total of 35 teams in football, hurling, camogie and ladies' football. These include three adult football teams, two adult hurling teams, two adult camogie teams and an adult ladies' football team. They also cater for many juvenile teams.