Last names starting with "O"
- Class of 2013 Josh O'dowd
- Class of 1982 Patrick OBoyle
- Class of 1980 David Obrien
- Class of 1969 Richard Oconner
- Class of 1977 Marianne Oconnor
- Class of 1980 Patty Oldham
- Class of 1983 Brian Olkiewicz
- Class of 1980 Sherry Olkiewicz
- Class of 1976 Mark Olson
- Class of 1980 Lisa Ordman
- Class of 1990 Mary Orednick
- Class of 2005 Aaron Orozco
- Class of 1980 David Orozco
- Class of 1965 Gerry Osullivan
- Class of 2014 Bryce Oswald
- Class of 1983 Laureen Oswald
- Renee Ott
Looking for Lemont High School alumni not listed? If so, check out Classmates.com® - hundreds of more LHS alumni have posted their profiles.
About the Lemont High School Alumni Directory
If you attended Lemont High and want to be added to the alumni directory register now to add your name to the alumni list. You can share memories of those activities that you were involved with at Lemont HS and you can view other alumni and read what other former students have posted about the time they spent at Lemont.