Last names starting with "O"
- Class of 2005 Brandon O'Connor
- Class of 2002 Veronica O'Gorman (now Zalewa)
- Class of 1969 Deborah Obrien
- Class of 2005 John Oconnor
- Julie Ocosta
- Class of 2010 Shannon ODonnell
- Class of 2011 Ramsey Okdeh
- Lexi Oliver
- Class of 2006 Lauren Olmos
- Class of 1996 Melissa Ondarcho
- Class of 2005 Kimberly OReilly
- Class of 1995 Kimberly Orilley
- Class of 2011 Kadi Orr (formerly Burdi)
- Brittany Osborne
- Class of 2008 Kasey Osborne
- Class of 2009 Sanel Osmanovic
- Class of 2009 Sanel Osmonovic
- Class of 1998 Mark Oswalt
- Class of 2007 Salena Ousley
- Garrett Owens
Looking for Mandarin High School alumni not listed? If so, check out Classmates.com® - hundreds of more MHS alumni have posted their profiles.
About the Mandarin High School Alumni Directory
If you attended Mandarin High and want to be added to the alumni directory register now to add your name to the alumni list. For former Mandarin students from FL, you can view the class reunion information that has been posted by other site visitors. In addition, we encourage you to post your profile in the alumni directory, share information about the school activities you were involved with and reconnect with Mandarin High School alumni.