Elk Township is a township in Tioga County, Pennsylvania, United States. The population was 45 at the 2020 census, and 49 at the 2010 census. There were five children under the age of 19 years.

Tioga County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 41,045. Its county seat is Wellsboro. The county was created on March 26, 1804, from part of Lycoming County and later organized in 1812. It is named for the Tioga River. The county is part of the North Central Pennsylvania region of the state.