Juan José Carrillo (September 8, 1842 – March 30, 1916),[1] was a Californio politician and judge, who served as Mayor of Santa Monica and as the last City Marshal of Los Angeles.

[2] His grandfather Carlos Antonio Carrillo (1783–1852) was Governor of Alta California from 1837 to 1838.

Juan's great uncle, José Antonio Carrillo, was a three time mayor of Los Angeles and a hero of the Californios during the Mexican–American War.

He acted for a time as agent for his aunt, Arcadia Bandini de Stearns Baker.

After his retirement from the council he served two years as superintendent of streets, from 1904 to 1906, and a police judge in Santa Monica from 1905 to 1915.