Multyfarnham () is a civil parish in County Westmeath, Ireland. It is located about north of Mullingar on the southwestern shore of Lough Derravaragh.
Multyfarnham is one of 8 civil parishes in the barony of Corkaree in the Province of Leinster. The civil parish covers .
Multyfarnham civil parish comprises the village of Multyfarnham, and 14 townlands: Abbeyland, Ballindurrow, Ballinphort, Ballinriddera, Ballynaclonagh, Ballynakill, Donore, Froghanstown, Lismalady, Monintown, the townland of Multyfarnham, Rathganny, Soho and Tober.
The neighbouring civil parishes are: Mayne (barony of Fore) to the north, Faughalstown (Fore) to the north and east, Leny, Stonehall and Tyfarnham to the south and Lackan to the west.