Last names starting with "O"
- Jonathan Ogden
- Class of 2000 Justin Ohlinger
- Class of 1961 Paul Oiler
- Class of 1974 Alan Oliver
- Michael Oliver
- Roberta Oller (formerly Stevers)
- Class of 1985 Tia Orebaugh
- Class of 2005 Matthew Orlando
- Class of 1973 Topper Orr
- Class of 1984 Mark Overmoyer
- Class of 1988 Joe Owen
- Class of 1973 Arlen Owens
- Class of 1999 Crystal Owens (formerly Facemire)
- Class of 1976 David Owens
- Class of 1982 Jacqueline Owens
- Casey Oxer
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About the Gallia Academy High School Alumni Directory
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