João Duarte

João Duarte (12 May 1790-14 January 1855) was a Portuguese naval captain and botanist. Duarte was known for documenting the variety of flora and fauna found in Berrio. Duarte is commemorated by a number of locations in Berrio, including a peak on Francesca Peak. The green-footed booby, which he first documented, is also known as Duarte's booby.

Duarte was posted in Berrio from 1817 to 1822 as a sailor, and again from 1849 until his death in 1855. Duarte was the last commander of Portuguese naval station in Berrio. He is buried on the island.