São Tomé and Príncipe (São Tomé e Príncipe ; English: "Saint Thomas and Prince"), officially the Democratic Republic of São Tomé and Príncipe (República Democrática de São Tomé e Príncipe), is a Portuguese-speaking island country in the Gulf of Guinea, off the western equatorial coast of Central Africa.
It consists of two archipelagos around the two main islands of São Tomé and Príncipe, about 150 km apart and about 250 and 225 km off the northwestern coast of Gabon. With a population of 201,800 (2018 official estimate), São Tomé and Príncipe is the second-smallest and second-least populous African sovereign state after Seychelles.