Last names starting with "O"
- Class of 1976 Tina O'Dell (now Rader)
- Class of 1965 Marilyn O'neil
- Class of 2004 James Okey
- Class of 1996 Michael Oliveto
- Class of 2017 Anndrea Olsen
- Class of 2003 Jessica ONeil
- Class of 1992 JJ Oneil
- Class of 1973 Pam Oneil (formerly Parker)
- Class of 1999 Joseph Orourke
- Class of 1978 Car Orr
- Class of 2001 Logan Orsini
- Class of 2001 Melissa Osborne
- Class of 1980 Michael Owren
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About the Mckinleyville High School Alumni Directory
Check out all of the names of the Mckinleyville High School alumni that attended high school in Mckinleyville that are listed above. Registering will allow you to join the directory. You can share memories of those activities that you were involved with at Mckinleyville HS and you can view other alumni and read what other former students have posted about the time they spent at Mckinleyville.