Omeath is a village on the Cooley Peninsula in County Louth, Ireland, close to the border with Northern Ireland. It is roughly midway between Dublin and Belfast, very near the County Louth and County Armagh / County Down border. As of the 2016 census, Omeath had a population of 603, up from 439 during the 2006 census. It is approximately 6 km from Carlingford and about 8 km from Newry. By sea, Omeath's nearest land neighbour is Warrenpoint on the south County Down coast.
Omeath is home to the Cúchulainn Gaels Gaelic Athletic Association club.