Last names starting with "O"
- Class of 1964 Peg OCallan (formerly Curtner)
- Minnie Oda
- Julia Ohl
- Karu Oku
- Class of 2003 Racheal Olding
- Class of 1985 Lisa Ole
- Class of 1971 Barb Olslinger
- Class of 1966 Judith Opphile (now Smith)
- Class of 1966 Judy Opphile
- Class of 1966 Judy Opphile Smith
- Class of 2011 Chelsea Oreilly
- Class of 2016 Cody Orndorff
- Class of 1999 Carrie Osborne
- Class of 1969 Barb Oslinger
- Class of 1985 Denise Ostendorf (now Mulvihill)
- Class of 1965 Michael Ostendorf
- Shawn Osterholt
- Doug Ouhl
- Dawn Overly
- Class of 1975 Marsh Owen
Looking for Piqua High School alumni not listed? If so, check out Classmates.com® - hundreds of more PHS alumni have posted their profiles.
About the Piqua High School Alumni Directory
Check out all of the names of the Piqua High School alumni that attended high school in Piqua that are listed above. Registering will allow you to join the directory. If you are a Piqua alumn, we encourage you to register and be sure to sign up for the alumni newsletter.