Carrickmacross is a town in County Monaghan, Ireland. The town and environs had a population of 5,032 according to the 2016 census, making it the second-largest town in the county. Carrickmacross is a market town which developed around a castle built by the Earl of Essex in 1630. The town is 20 km west of Dundalk and 75 km north-north-west of Dublin city centre and 106 km south west of Belfast. Carrickmacross won the European Entente Florale Silver Medal Award in 1998. The local Gaelic football and hurling club is Carrickmacross Emmets. The local soccer team is Carrick Rovers.

County Monaghan is a county in Ireland. It is in the province of Ulster and is part of Border strategic planning area of the Northern and Western Region. It is named after the town of Monaghan. Monaghan County Council is the local authority for the county. The population of the county was 65,288 according to the 2022 census.