Moulin is a parish, which lies in Perth and Kinross Council Area, some 5 miles (8 km) northeast of Pitlochry and 17 miles (27 km) northwest of Blairgowrie in Perth and Kinross.
It is located in the old county of Perthshire, which disappeared following the Local Government (Scotland) Act 1974.
The parish has an area of 181.8 sq. km (70.2 sq. miles). Moulin has 4 neighbouring parishes; namely Blair Atholl, Dull, Kirkmichael and Logierait. The boundaries of this parish were modified among significant changes recommended by the Boundary Commissioners after the Local Government (Scotland) Act 1889.