Bishop Alemany High School is a Roman Catholic secondary school located in the San Fernando Valley community of Mission Hills in Los Angeles, California.

It is within the San Fernando Pastoral Region of the Archdiocese of Los Angeles.

In 1956, boys were admitted for the first time and the school was renamed to Bishop Alemany High School after Joseph Sadoc Alemany, the first archbishop of San Francisco.

[2] Alemany High School was first located on the north side of Rinaldi St, just east of Sepulveda Blvd, but due to the Northridge earthquake in 1994 it sustained damage too great to be considered safe.

Insomuch, it was decided to move the school across the street into the nearby buildings of Our Lady Queen of Angels Seminary at the historic San Fernando Mission.