Tidioute is a borough in Warren County, Pennsylvania, United States. The population was 792 at the 2000 census. The name is an Iroquoian word meaning "protrusion of land", referring to a sharp bend in the Allegheny River.
Tidioute is located at 41°41′4″N 79°24′14″W / 41.68444°N 79.40389°W / 41.68444; -79.40389 (41.684424, -79.403970).
According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km²), of which, 1.1 square miles (2.9 km²) of it is land and 0.3 square miles (0.7 km²) of it (20.00%) is water.