Mullingar (Irish: An Muileann gCearr, meaning "the left–handed mill") is a civil parish in County Westmeath, Ireland. It is located about 1.7 kilometres (1 mi) east of Mullingar.
Mullingar is one of 3 civil parishes in the barony of Moyashel and Magheradernon in the Province of Leinster. The civil parish covers 22,435.6 acres (90.794 km2). Parts of the parish (Cartronganny, Clownstown, part of Plodstown and Russellstown) are in the neighbouring barony of Fartullagh.
Mullingar civil parish comprises 64 townlands: Ardivaghan, Ardmore, Balgarrett, Ballagh, Balleagny, Ballina, Ballinderry, Ballyglass, Ballynaclin, Balnamona (or Charlestown), Baltrasna, Bellmount (or Curristown), Bellview, Boardstown, Brockagh, Brottonstown, Brottonstown Little, Cartron, Cartronganny, Clondardis, Clongawny, Clonmore, Clownstown, Commons, Culleen Beg, Culleen More, Drumloose, Farranfolliot, Farranistick, Farranshock (or Rathgowan), Glascarn, Grange North, Grange South, Habsborough, Hanstown, Hopestown, Irishtown, Keoltown, Kilpatrick, Knockdrin Demesne, Ladestown, Mullingar town, Marlinstown, Marlinstown Bog, Mullingar (townland), Newtown, Petitswood, Plodstown, Plodstown, Quarry, Rathcolman, Robinstown (Levinge), Robinstown (Tyrrell), Russellstown, Sarsanstown, Slanestown, Spittlefield (or Springfield), Srahenry, Stokestown, Strattonstown, Tuitestown, Tullaghan, Walshestown North, Walshestown South and Windtown
The neighbouring civil parishes are: Portnashangan (barony of Corkaree) to the north, Rathconnell to the north‑east, Killucan (barony of Farbill) to the east, Lynn (barony of Fartullagh) to the south‑east and south, Dysart and Churchtown (barony of Rathconrath) to the south‑west, Rathconrath (Rathconrath) to the west and Templeoran (barony of Moygoish) and Portloman (Corkaree) to the north‑west.