List of museums in Los Angeles County, California

A list of museums located within Los Angeles County of southern California.

Museums located within the City of Los Angeles, while also within LA County, are found separately listed on the List of museums in Los Angeles, California.

The list includes museums and art galleries — of historical, cultural, ethnic, science, and arts organizations, nonprofit organizations, government departments, university and college facilities, and private or corporate collections — that have galleries, buildings, and or open air spaces with exhibits and works open for public viewing.

It currently does not include virtual museums, although some of the listed physical museums have notable online collections also.

Former

 * Academy of Motion Picture Arts and Sciences Galleries
 * Downey Museum of Art, Downey, website, closed in 2009 and seeking new location
 * Eames Office, Santa Monica
 * Angels Attic, closed in 2017