St. Bonaventure High School is a private, Catholic, co-educational secondary school in Ventura, California, United States. This college preparatory program was founded on the spiritual ideals of St. Francis of Assisi and the academic fervor of its namesake, St. Bonaventure. The nearby Mission San Buenaventura was founded by the Franciscan order in 1782 and also named after Saint Bonaventure. The school's mascot was derived from one of the titles of Bonaventure, "Seraphic Doctor."