Dundalk · Co. Louth
Seán O'Mahony's is a Gaelic football club in the Quay area of Dundalk, County Louth, near the town's port.
Its clubrooms and pitch sit beside the Navvy Bank, a well-known local walk with views across to the Cooley Mountains.
As of 2025 the club competes in the Louth Intermediate Football Championship.