Last names starting with "O"
- Jared Oates
- Kim Oats
- Class of 1962 Kay Obrien
- Class of 1970 Catharine Odlozil
- Class of 2004 Adrian Oliver
- Class of 2015 Chris Ontiveros
- Class of 2003 Elizabeth Almanza Ontiveros
- Class of 2007 Lupita Ortega
- Class of 2006 Terrance Ortega
- Class of 1997 Martina Ortiz
- Amber Ott
- Class of 2015 Antonio Ovalle
- Class of 2006 Rebecca Overall
- Class of 2002 Erica Ozuna
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About the Ennis High School Alumni Directory
Check out all of the names of the Ennis High School alumni that attended high school in Ennis that are listed above. Registering will allow you to join the directory. If you are an alumn of EHS 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.