Anthony Chabot Regional Park is a regional park in Oakland, Alameda County, California in the United States. It is part of the East Bay Regional Park District system, and covers 5,067 acres (2,051 ha) in the San Leandro Hills adjacent to Oakland, San Leandro and Castro Valley. Popular activities include hiking, cycling and horseback riding. A gun range operated by the Chabot Gun Club was shut down in 2016, following complaints about pollution.

Alameda County is a county located in the U.S. state of California. As of the 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and 21st most populous nationally. The county seat is Oakland. Alameda County is in the San Francisco Bay Area, occupying much of the East Bay region.