List of governors of California before 1850

Below is a list of the governors of early California (1769–1850), before its admission as the 31st U.S. state. First explored by Gaspar de Portolá, with colonies established at San Diego and Monterey, California was a remote, sparsely-settled Spanish province of New Spain. In 1822, following Mexican independence, California became part of Mexico.

In 1836, a coup led by Californios Juan Bautista Alvarado and José Castro eventually resulted in Alvarado becoming governor.^[1] That conflict ended in 1838, when the central government of Mexico recognized Alvarado as California Governor. The territorial diputación (legislature) approved the appointment.

Another disputed governorship occurred in 1844, settled when another Californio, Pio Pico, became the last Governor of Mexican California. In 1846, the "Bear Flag Revolt" in Sonoma declared California an independent republic—the "Bear Flag Republic". No government was formed, however, and the revolt did not have time to spread very far because California came under U.S. military occupation at the outset of the Mexican–American War less than a month later. California was ceded to the U.S. in 1848, and was admitted as the 31st U.S. state on September 9, 1850. Peter Burnett, the last governor of the post-war military territory, became its first state governor after admission.