Register as an alumni from Los Osos High School (Ontario California) and reunite with 1,101 classmates and old friends. Share your memories by posting photos or stories, or find out about your next class reunion!
Los Osos Past Reunions
Browse through past Los Osos High School events to reminisce as you view photos taken at our reunions:
Los Osos Yearbooks
Flip through class yearbooks or browse photo albums from classmates, and see what they look like now:
Los Osos Apparel
Check out our huge selection of Grizzlies spiritwear, including shirts, shorts, accessories and much more!
Grizzlies PRIDE
Los Osos High School Apparel
Recently Joined Grizzlies
Gina Angelo
Class of 2005
Class of 2005
Andrea Ayala
Class of 2007
Class of 2007
Stephen Vallejo
Class of 2007
Class of 2007
Jennifer Beavers
Class of 2005
Class of 2005
Cristina Pacheco
Class of 2008
Class of 2008
Austin Austin Chavez
Class of 2025
Class of 2025
Jeremiah Sercado
Class of 2024
Class of 2024
Emily Silva
Class of 2024
Class of 2024
Christina Rodriguez
Class of 2023
Class of 2023
Te'zhon Green
Class of 2017
Class of 2017
Selina Garcia Selina Garcia
Class of 2009
Class of 2009
Mark Ze
Class of 2022
Class of 2022