Muncaster is a civil parish in the Cumberland district, in the ceremonial county of Cumbria, England.

The parish is 41 miles (66 km) south west of the city of Carlisle.

[2] The parish touches Bootle, Drigg and Carleton, Eskdale, Irton with Santon, Ulpha and Waberthwaite.

[7] In 1847 the parish contained the townships of Muncaster and Birkby.

[8] On 25 March 1886 part of Millom was transferred to the parish.