Last names starting with "O"
- Class of 2003 Abbey O'donnell
- Class of 1988 Lauren O'Shaughnessy (now Garcia)
- Class of 1992 Joseph Ochoa
- Susan Ockershausen
- Class of 1988 Traci Oconnor
- Class of 1997 Amy Odonnell
- Kelly Oldani
- Class of 2000 Garrett Oliphant
- Alejandro Olivares
- Class of 2012 Destiny Oliver
- Class of 2013 Joseph Oliver
- Corina Ollenburg
- Class of 2011 Ashley Olson
- Class of 2002 Vanessa Orona
- Class of 2016 Ricardo Oropeza
- Class of 2016 Brando Ortiz
- Class of 1988 Lauren OShaughnessy
- Lisa Overbey
- Class of 2000 Audra Owen
Looking for Klein Oak High School alumni not listed? If so, check out Classmates.com® - hundreds of more KOHS alumni have posted their profiles.
About the Klein Oak High School Alumni Directory
If you attended Klein Oak High and want to be added to the alumni directory register now to add your name to the alumni list. If you are a former student of KOHS in Spring, Texas, register now to add your name.