Stonycreek Township is a township in Somerset County, Pennsylvania, United States. The township takes its name from the stony creek, which flows through it and represents its western boundary. The stream takes its name from the rocky bed over which it flows for a great part of its course. Its Indian name was Sinne-Hanne or Achsin-Hanne. Hanne means a stream and especially a swift mountain stream. The population was 2,087 at the 2020 census.