Newtownabbey (Irish: Baile na Mainistreach) is a Borough north of Belfast in County Antrim, Northern Ireland. Sometimes considered to be a suburb of Belfast, it is separated from the city by the M2 motorway. At the 2001 Census, Newtownabbey Urban Area had a population of 62,056, making it the fourth largest settlement in Northern Ireland. The area forms part of Newtownabbey Borough Council.
Largely a residential area, the borough is also home to many engineering and computer industries. Retail and leisure facilities include the Abbey Centre, the Valley Leisure Centre, the Ballyearl Arts & Leisure Centre,The Theatre at the Mill, Glengormley Moviehouse, Glengormley Sportsbowl and three large public parks. The main campus for the University of Ulster is based in the Jordanstown area of Newtownabbey. Although the Jordanstown campus of the University of Ulster is due to merge with the current Belfast campus which is due to be completed by 2018.