Mendocino County is a county located on the North Coast of the U.S. state of California. As of the 2020 census, the population was 91,601. The county seat is Ukiah.

Antonio de Mendoza was a Spanish colonial administrator who was the first viceroy of New Spain, serving from 14 November 1535 to 25 November 1550, and the second viceroy of Peru, from 23 September 1551, until his death on 21 July 1552.