 Rio Mesa High School athletic teams are nicknamed the Spartans.The school is a charter member of the Pacific View League, a conference within the CIF Southern Section (CIF-SS) that was established in 1998.CIF Football - 1971 Rio Mesa (Div A) John Reardon 28-20 Paso Robles
PVL Wrestling- 2010 5-1
Golf - 1973 CIF Southern Section champions coached by Ken Barone.