The Ventura County Courthouse, known since 1974 as Ventura City Hall, is a historic building in Ventura, California. It is located on a hill at the top of California Street, overlooking the city's downtown district with views of the Santa Barbara Channel and Channel Islands. It was the first building in the City of Ventura to be listed on the National Register of Historic Places and has also received historic designations at the state, county and city levels.