Last names starting with "O"
- Class of 1973 Shannon O'brien (now Myers)
- Class of 1964 Leon Oberlander
- Class of 2008 Ken Obilor
- Class of 1973 Bryan Obrien
- Class of 1996 Carlos Ocon
- Class of 1960 Andrea Oconnell
- Barbara Oettinger
- Class of 1955 Lori Oman
- Class of 1963 Nina Orloff
- Judith Ortiz
- Class of 2007 Rebecca Ortiz
- Class of 1966 Cynthia Osterhus
- Class of 2000 Kanisha Owolabi
- Class of 2005 Chika Owuso
- Class of 2007 Chima Owuso
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About the Sullivan High School Alumni Directory
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