Last names starting with "O"
- Class of 2004 Brittney Ogren
- Class of 2005 Connon Okiharagaines
- Class of 2008 Matthew Okimoto
- Class of 2018 Garrett OLeary
- Class of 2010 Brianna Ortiz
- Class of 2006 Kristen Osendorf
- Class of 2008 Kyle Osendorf
- Los Oso
- Osooso Oso
- Class of 1966 Christiam Osorio
- Class of 2013 Courtney Otis
- Class of 2005 Kisatchy Owens
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About the Los Osos High School Alumni Directory
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