Florencio Campomanes (22 February 1927 – 3 May 2010) was a Filipino political scientist, chess player, and chess organizer.
Campomanes was born in Manila and earned his B.A. in political science from the University of the Philippines in 1948. Then, he studied at Brown University (Providence, Rhode Island), where he earned his M.A. in 1951. He undertook doctoral studies at Georgetown University, Washington, D.C., from 1949 to 1954.
Campomanes was a National Master strength player during his peak years, and was Philippine national champion on two occasions (1956, 1960). He represented his country at five Chess Olympiads: Moscow 1956, Munich 1958, Leipzig 1960, Varna 1962, and Havana 1966. He met some distinguished opposition as a result, losing games against Pal Benko and Ludek Pachman at Moscow 1956, Oscar Panno at Munich 1958, Mikhail Tal and Miguel Najdorf at Leipzig 1960, and Lev Polugaevsky at Havana 1966.
Campomanes became involved in FIDE as a national delegate, and worked his way into prominence in Asian chess organization. Campomanes often boasted that he was close to the former Philippine president Ferdinand Marcos. Campomanes helped organize the World Chess Championship match held in 1978 at Baguio, Philippines, between Anatoly Karpov and Viktor Korchnoi.