Last names starting with "O"
Unknown Grad Year
- Class of 1984 Colleen O'Grady
- Class of 1967 Cheryl Ogeltree
- Class of 1972 Kathy Ohara
- Lori Okada
- Class of 1975 Elisabeth Olander (formerly Worley)
- Class of 1969 Guy Oling
- Mariana Oliveira
- Class of 1979 Ellen Olsson (now Brittain)
- Class of 2009 Lindsay Oneill
- Class of 1981 Kim Ong
- Class of 1960 Barbara Ornellos
- Class of 1985 Shari Osullivan
- Class of 1988 Bryan Outland
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