Oxnard () is a city in Ventura County, California, United States. On California's South Coast, it is the most populous city in Ventura County and the 22nd most populous city in California. Incorporated in 1903, Oxnard lies approximately 60 miles (97 km) west of downtown Los Angeles and is part of the larger Greater Los Angeles area.
It is at the western edge of the fertile Oxnard Plain, adjacent to agricultural fields with strawberries, lima beans and other vegetable crops. Oxnard is also a major transportation hub in Southern California, with Amtrak, Union Pacific, Metrolink, Greyhound, and Intercalifornias stopping there. It also has a small regional airport, Oxnard Airport (OXR).
Oxnard's population was 208,881 as of 2019. It is the most populous city in the Oxnard-Thousand Oaks-Ventura, CA Metropolitan Statistical Area.
Before the arrival of Europeans, the area was inhabited by Chumash Native Americans. The first European to encounter the area was explorer João Rodrigues Cabrilho, who claimed it for Spain in 1542.