Portmoak is a parish, which lies in Perth and Kinross Council Area, some 5 miles (7 km) east of Kinross in Perth and Kinross and 6 miles (10 km) west of Glenrothes in Fife.
It is located in the old county of Kinross-shire, which disappeared following the Local Government (Scotland) Act 1974.
The parish has an area of 39.3 sq. km (15.1 sq. miles). Portmoak has 9 neighbouring parishes; namely Auchterderran, Ballingry, Cleish, Falkland, Kinglassie, Kinross, Leslie, Orwell and Strathmiglo. The boundaries of this parish were modified among significant changes recommended by the Boundary Commissioners after the Local Government (Scotland) Act 1889.