Francisco Félix de Souza (5 October 1754 – 8 May 1849) was a Brazilian slave trader who was deeply influential in the regional politics of pre-colonial West Africa (now Benin, Togo and Nigeria).

He founded Afro-Brazilian communities in areas that are now part of those countries and went on to become the "chachá" of Ouidah (the slave-trading hub for the region), a title that conferred no official powers but commanded local respect in the Kingdom of Dahomey, where, after being jailed by King Adandozan of Dahomey, he helped Ghezo ascend the throne in a coup d'état.

[4] Trading slaves from what was then the Dahomey region, de Souza was known for his extravagance and was reputed to have had at least 80 children with women in his harem.

[7] According to Edna Bay, de Souza was "deeply influential as an intermediary between European and African cultures".

[9] If true, it would make the contemporary de Souzas members of the Portuguese nobility in addition to being an African chieftaincy family.