圣安东尼奥是非洲国家圣多美和普林西比的城市，也是帕盖县的首府，位于普林西比岛东部，建城于1471年，每年平均降雨量1,950毫米，2005年人口1,156。

Santo António is the main settlement of Príncipe Island in São Tomé and Príncipe and was the colonial capital of Portuguese São Tomé and Príncipe from 1753 until 1852. It lies on the north east coast and the Palhota River. It serves as the capital of both Príncipe Province and Pagué District and has an estimated population of 1,200 residents.