Príncipe is the smaller of the two major islands of São Tomé and Príncipe. It has an area of 136 km² and a population of around 5,000 people. It rises in the south to 948 metres at Pico de Príncipe , in a thickly forested area forming part of the Obo National Park . The north and centre of the island were formerly plantations but are now also largely forest.

The island has one town, Santo Antonio, and an airport, as well as some small villages – few connected to the small road network.