Ballymartin (from Irish Baile Mhic Giolla Mhártain 'Gilmartin's townland') is one of several places on the island of Ireland.

Northern Ireland

• A place near Templepatrick and junction 5 of the M2 motorway in County Antrim, with a large Translink park and ride facility for buses to Belfast.^[1][2]
• A small village and townland between Annalong and Kilkeel in the Newry, Mourne and Down District Council area in County Down.^[3] In the 2001 Census it had a population of 414 people. It has a St. Joseph's Primary School.
• A place in Tullynakill parish, County Down^[4]

Republic of Ireland

• A townland in Borris parish, County Carlow
• A small area off the village of Pallaskenry County Limerick^[5]
• A village in Kilmaine parish, on the N84 between Kilmaine and Ballinrobe, in County Mayo

• List of towns and villages in Northern Ireland
• List of towns and villages in the Republic of Ireland