Last names starting with "O"
- Class of 1976 William OBrien
- Sheila Oconner
- Class of 1987 Kimberley Olbrias
- Jazmine Oliver
- Mayra Olm9
- Class of 1985 Elizabeth Olmo
- Class of 2000 Melanie Olsolf
- Class of 2013 Christhoper Olszowy
- Class of 2011 Yamilez Organista
- Class of 1957 Charlotte Orlando
- Class of 1957 Charollete Orlando
- Class of 2010 Destinie Ortiz
- Class of 1975 Maria Ortiz
- Class of 2000 Sheilla Ortiz
- Stephanie Ossowskie
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