Antonio "Tony" Ocampo Mabesa ONA (January 27, 1935 – October 4, 2019) was a Filipino stage director, film and television actor, and professor.

He finished his degree in Agriculture at the University of the Philippines Los Baños, where he was mentored by Wilfrido Ma.

[1][4][5] He pursued a master's degree in theater arts at the University of California, Los Angeles (UCLA) in 1965, and a master's degree in education at the University of Delaware in 1969.

"[6] Upon his return from studies abroad, Mabesa was offered a teaching position at the UP Diliman's Department of Speech Communications and Theater Arts.

He mentored some of the country's most prominent theater artists, such as Shamaine Centenera, Irma Adlawan, Nonie Buencamino, Eugene Domingo, Frances Makil-Ignacio, and Neil Ryan Sese.