Rector is a small unincorporated community in Ligonier Township, Westmoreland County, Pennsylvania, United States. As of 2000, the population of Rector was 600. Rector is composed of 26.4 miles².

Outdoor recreation areas in Rector include Linn Run State Park and Powdermill Nature Reserve.

Rector is part of the Ligonier Valley School District. The Valley School of Ligonier, a private school founded in 1946, serves kindergarten through eighth grade.