Last names starting with "O"
- Class of 1980 Rhonda Oachs (formerly Rice)
- Class of 1997 Christina ODonnell
- Amanda Odor
- Class of 1979 Jeffery Ogilby
- Sarah Oiler
- Class of 1984 Lilian Olivieri
- Class of 1987 Tomas Olivieri
- Class of 2005 Co Olson
- Colin Ondick
- Class of 1971 Sharon Ondrejka
- Class of 2003 Ashlee Oneal
- Class of 1976 Kitty Oost
- Class of 1967 Thomas ORiordon
- Class of 1983 Robert Orndorff
- Class of 1976 Rita Arlene Osborne
- Class of 1984 Gary Overholser
- Class of 2002 Kymberly Owen (formerly Rowe)
- Ginny Owens
- Class of 1968 Rick Oyer
Looking for Greenon High School alumni not listed? If so, check out Classmates.com® - hundreds of more GHS alumni have posted their profiles.
About the Greenon High School Alumni Directory
Check out all of the names of the Greenon High School alumni that attended high school in Springfield that are listed above. Registering will allow you to join the directory. If you are an alumn of Greenon HS you should register now in the alumni directory. We also encourage you to interact with the rest of the alumni on this site. You can find old friends, share photos and stay updated on the latest school news.