Last names starting with "O"
- Class of 1978 Kathy Oberdick
- Class of 1964 Johanna Obrien
- Class of 1981 Denise Olah
- John Oleary
- Class of 1972 Diane Olexa
- Class of 1997 Katie Oliva (now Alderman)
- Class of 1976 Donnamarie Olszewski
- Class of 1975 Gail Ordonez (formerly Bragg)
- Class of 1987 Denise Orlovsky
- Class of 1984 Russell Osullivan
- Class of 1995 Ryan Otoole
- Class of 1971 Karen Oyer
Looking for Colonia High School alumni not listed? If so, check out Classmates.com® - hundreds of more CHS alumni have posted their profiles.
About the Colonia High School Alumni Directory
If you attended Colonia High and want to be added to the alumni directory register now to add your name to the alumni list. While you are reminiscing about the times you spent in high school at Colonia High School, you should also check out alumni photos, yearbook listings and share any reunion info if possible.