Regional park is a term used in the United States for an area of land preserved on account of its natural beauty, historic interest, or other reason, and under the administration of a regional park board rather than the National Park Service, a state, county or other established unit of local government.

The term "region" has no precise meaning in US local government. In practice it is therefore used for functions that cross the boundaries of local government entities. In the case of parks, a park that crosses state boundaries would usually be managed by the federal government through the National Parks Service. Similarly, a park within a state that crosses county boundaries and is not important enough to be a national park, might be maintained as a state park. Alternatively, a special authority can be set up, under the joint jurisdiction of two or more counties. Examples are the East Bay Regional Park District in Alameda and Contra Costa counties, California, and the Three Rivers Park District in Minnesota.