António Fwaminy da Costa Fernandes aka Tony da Costa Fernandes (Cabinda, 26 April 1942) is an Angolan politician.
[3] Costa Fernandes studied with Savimbi, the future leader of UNITA, in Switzerland.
In November 1963 they went to Portugal, planning an uprising against Portuguese colonial authorities in Angola.
[citation needed] In the 1990s Fernandes and UNITA Interior Minister General Miguel N'Zau Puna allegedly uncovered the fact that UNITA leader Jonas Savimbi ordered the assassinations of both Wilson dos Santos, UNITA's representative to Portugal, and Tito Chingunji, one of Costa Fernandes' predecessors.
Dos Santos and Chingunji's deaths and the defections of Fernandes and Puna weakened the U.S.-UNITA relationship and seriously harmed Savimbi's international reputation.