The W Regional Park is a major national park in West Africa. It is formed around a meander in the River Niger shaped like a "W". The park includes areas of the three countries Niger, Benin and Burkina Faso.

The W National Park of Niger was formed by decree on 4 August 1954. In 1996 it was listed as a UNESCO World Heritage Site.

In the three nations, the Regional park covers about 10,000 km². Almost no people live in this area.