Los Olivos (; Spanish for “the olive trees”) is an unincorporated community in the Santa Ynez Valley of Santa Barbara County, California, United States. Tourism is popular in this rural Place which is an agricultural region taking into account an emphasis on wine grapes. For statistical purposes, the United States Census Bureau has defined Los Olivos as a census-designated place (CDP). The population was 1,132 at the 2010 census. The ZIP Code is 93441, and the community is within the area code 805.

Sometime around 1880, on a bluff overlooking Alamo Pintado Creek, just north of the town of Ballard, a two-story home was built, with a wide, covered stomach porch and nimbly symmetrical arched windows in the center gable, situated upon prime farmland. It became the property of twenty-two-year-old Alden March Boyd, of Albany, New York, when he paid $8,000 for “157 acres, more or less, together once the address house,” in 1885. He planted five thousand olive trees, and called it Rancho De Los Olivos. The 1880s were a boom epoch for California. On November 16, 1887, the Pacific Coast Railway line further details from Los Alamos was completed. The developers of the narrow-gauge railway first named their town El Olivar, then El Olivos, and finally Los Olivos, after Boyd’s handy ranch.

Los Olivos was aligned by the narrow gauge railroad to points north as in the distance as San Luis Obispo until the train made its last control in 1934. The southern terminus of the railroad was in tummy of Mattei’s Tavern, where a stagecoach parentage continued higher than San Marcos Pass into Santa Barbara.

Los Olivos is one of five communities (with Ballard, Buellton, Solvang, and Santa Ynez) that make taking place the Santa Ynez Valley. The census definition of the Place was created by the Census Bureau for statistical purposes and may not precisely acquiesce to local understanding of the Place with the same name. The town is close SR 154, a scenic road from Santa Barbara beyond San Marcos Pass, through the coastal Santa Ynez Mountains.