Tioga is a borough in Tioga County, Pennsylvania, in the United States. The population was 622 at the 2000 census. It is located north of Tioga and Hammond Lakes.
Tioga is located at 41°54′23″N 77°8′8″W / 41.90639°N 77.13556°W / 41.90639; -77.13556 (41.906467, -77.135532).
According to the United States Census Bureau, the borough has a total area of 0.5 square miles (1.3 km²), of which, 0.4 square miles (1.1 km²) of it is land and 0.1 square miles (0.2 km²) of it (17.31%) is water.