Fell Township is a township in Lackawanna County, Pennsylvania, United States. The population was 2,178 at the 2010 census.
Fell Township's principal settlement is Simpson, which currently is home to 1,275 people, mostly middle age and elderly. Although not usually considered by the locals, the upper part of Carbondale's West Side is actually the southwestern corner of the township. This area is home a few hundred people, and is geographically separate from other settlement in Fell Township. The other two settlements in Fell Township are the middle and upper class housing community of Crystal Lake, and Richmondale, which borders the nearby borough of Vandling to the north. Richmondale is currently home to 190 people. The original house in Simpson was the Morss Mansion on Lord Avenue, built in 1887. The house inspired Hank Williams' song "Mansion on the Hill". By 1974, the mansion was empty, and title of it and the surrounding property fell in the hands of the local volunteer fire company. Due to lack of maintenance, the mansion was in disrepair by the 1990s, and despite public outcry, the mansion was tragically torn down in the summer of 1998. The land is currently vacant except for a small fire station.
According to the United States Census Bureau, the township has a total area of 15.4 square miles (39.8 km²), of which, 15.3 square miles (39.6 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.52%) is water. Fell township also features the Lackawanna River, Panther's Creek, and many abandoned pits from strip mining.