In Memoriam O

Mr. Amador O. Obordo | AA 1933, AB 1935
Mr. Manuel I. Oboza | HS 1951 | 31 May 2004
Mr. Arturo Cecil M. Oca | HS 1966, BS Management Engineering 1971 | 4 July 2009
Mr. Benjamin Abaya Oca | GS 1962, HS 1966 | 10 May 2011
Dr. Edwin M. Oca | HS 1970, BS Biology 1974 | 11 September 1997
Mr. Adrian V. Ocampo | GS 1948, HS 1953, AB Economics 1957 | 5 August 2005
Mr. Edgardo L. Ocampo | GS 1951, HS 1955, BS Business Administration 1959
Hon. Felicisimo S. Ocampo | HS 1927
Mr. Fernando H. Ocampo | AB 1914
Mr. Heriberto Ocampo | GS 1941, HS 1947
Mr. Jaime Ocampo | GS 1966, HS 1970 | 16 April 2006
Mr. Mario Ocampo | GS 1965, HS 1969 | 5 August 2004
Atty. Miguel V. Ocampo | GS 1938, HS 1942, AA 1947
Mr. Oscar L. Ocampo | GS 1952, HS 1956, BS Natural Science 1960
Mr. Pedro C. Ocampo | HS 1925, AA 1927
Mr. Renato A. Ocampo | AB 1969, MA 1977
Fr. Reynaldo F. Ocampo S.J. | AB Pre-Divinity 1974 | 2 February 2009
Atty. Vicente V. Ocampo Sr. | GS 1941, HS 1947, AA 1949 | 12 December 2008
Mr. Victor C. Ocampo | GS 1949, HS 1953 | 25 October 2006
Mr. Ignacio G. Oirola | GS 1929, HS 1933, AA Pre-Med 1935
Mr. Victor I. Ojeda | GS 1961, HS 1965
Fr. Antonio Olaguer S.J. | GS 1939, HS 1943*
Mr. Eric Jose "Jojo" P. Olaguer | GS'75, HS'79, Col'83| 9 November 2016
Mr. Valdemar O. Olaguer | GS 1935, HS 1939, AB 1947
Mr. Jose Victor V. Olaguera | GS 1968, HS 1972, AB History 1977 | 27 February 2012
Mr. Eleno S. Olaguivel | HS 1928, AA 1930, AB 1932
Mr. Anastacio Olavarieta | GS 1933, HS 1938, College 1940
Mr. Ponciano Olayta Jr. | HS 1937, BS Commerce 1942
Mr. Jesus Z. Oledan | HS 1947
Mr. Jose C. Oledan | HS 1943*
Mr. Edgardo P. Olivares | HS 1950, AB 1954 | 12 March 2012
Mr. Luis "Totit" Pasimio Olivares Jr. | GS'48, HS'52, Col'56 | 5 September 2015
Mr. Rogelio "Roger" P. Olivares | GS'51, HS'55, Col'59 | 1 December 2016
Mr. Rodolfo P. Olivares | HS 1947, AB 1951
Mr. Feliberto R. Oliveros Jr. | GS 1950, HS 1954 | 21 February 2008
Mr. Mark Joseph "MJ" N. Oliveros | BSMIS 2005 | 11 April 2013
Mr. Rawson D. Olsen | BS Business Management 1969
Mr. Lawrence D. Ong | AB Interdisciplinary Studies 1979 | 13 July 2001
Mr. Ricardo "Boy" B. Ong | Col'73 | 11 September 2016
Mr. Antonio "Tony" C. Ongpin | Col'72 | 18 November 2015
Mr. Jaime V. Ongpin | HS 1954, BS Business Administration (Management) 1958
Mr. Oscar R. Ongsiako Jr. | GS 1934, HS 1938, AB 1942
Mr. Pierre R. G. Ongsiako | GS 1963, HS 1967, AB Economics 1971
Atty. Severo V. Ongsiapco Sr. | HS 1929
Atty. Jose C. Ongsing | Bachelor of Laws 1959
Mr. Ramon F. Opinion | AB Literature 1952
Mr. Gregorio “Greg” O. Orara | GS’76, HS’80, Col’84, MA 2007 | 20 May 2014
Mr. Herminio "Minyong" G. Ordonez | HS'55 | 6 November 2014
Mr. Mariano R. Ordonez V | GS 1986, HS 1990, AB Political Science 1994 | 24 November 2007
Mr. Hipolito Ordoveza | HS 1926, AA 1928
Mr. Juanito L. Ordoveza | HS 1946, AB 1950
Hon. Canuto S. Oreta | HS 1955 | 3 September 2012
Mr. Conrado O. Orosa | GS 1953
Mr. Marc Gabriel H. Orosa | GS 1995, HS 1999 | 23 September 2001
Gov. Justo O. Orros Jr. | AB 1952, Bachelor of Laws 1956 | 22 April 2006
Mr. Francisco Ortega | HS 1922
Mr. Jesus A. Ortega | GS 1928, HS 1933
Mr. Nemesio M. Ortega | GS 1928, HS 1932
Mr. Salvador R. Ortega | GS 1953 | 28 November 2002
Mr. Santiago Ortiga | HS 1927, AA 1929
Mr. Gaston Z. Ortigas | GS 1942
Atty. Rafael O. Ortigas Jr. | GS 1949, Bachelor of Laws 1960 | 15 June 2009
Mr. Renato A. Ortile | HS 1981, AB Social Science 1985 | 17 May 2010
Dr. Alan T. Ortiz | GS'67, HS'71, Col'75 | 23 March 2020
Atty. Alberto S. Ortiz | HS 1954, AB Law 1958, Bachelor of Laws 1961
Atty. Montano B. Ortiz | Bachelor of Laws 1955
Mr. Reynaldo V. Ortiz | GS 1962*, HS 1966*, College 1970*, BS Management Engineering 1971
Mr. Rizal R. Ortiz | HS 1928
Atty. Vicente I. Ortiz | AA Pre-Law 1948, Bachelor of Laws 1952
Mr. Benjamin Z. Osias II | GS 1961, HS 1966, AB 1970 | 20 September 2007
Mr. Sergio Osmena Jr. | HS 1933, AA Pre-Law 1935
Mr. Bibiano R. Ouano | AA Pre-Med 1932, AB 1934
Mr. Emilio H. Ozaeta | HS 1941
Mr. Gerardo O. Ozaeta Jr. | GS 1977, HS 1981, BS Management Engineering 1985 | 3 December 2001
Mr. Herminio H. Ozaeta | HS 1947
*Not a graduate – associated batch