Allegheny Township is a township in Westmoreland County, Pennsylvania, United States. The population was 8,316 at the 2020 census, an increase from 8,002 at the 2000 census. It is the northernmost municipality of Westmoreland County. The municipality borders the townships of Buffalo, Harrison, Upper Burrell, and Washington; and the boroughs of Oklahoma, Vandergrift, Leechburg, West Leechburg, Lower Burrell, Freeport and Hyde Park. It is served by the Kiski Area School District.

Buffalo Township is a township in Butler County, Pennsylvania, United States. The population was 7,896 at the 2020 census.