Prince Edward Island National Park

| mapframe-zoom = 8 | mapframe-wikidata = yes Prince Edward Island National Park () is a National Park of Canada located in the province of Prince Edward Island. Situated along the island's north shore, fronting the Gulf of St. Lawrence, the park measures approximately 60 km in length and ranges from several hundred metres to several kilometres in width. Established in 1937, the park's mandate includes the protection of many broad sand beaches, sand dunes and both freshwater wetlands and saltmarshes. The park's protected beaches provide nesting habitat for the endangered piping plover; the park has been designated a Canadian Important Bird Area.

An extension was added to the park in 1998 when an extensive sand dune system in Greenwich was transferred from the provincial government to Parks Canada. The Prince Edward Island National Park also includes Green Gables, a 19th century farm that was the childhood inspiration for the Anne of Green Gables novels by author Lucy Maud Montgomery, as well as Dalvay-by-the-Sea, a Victorian era mansion currently operated as an inn.

In 1999, the Canadian Nature Federation identified Prince Edward Island National Park as being the most endangered in the national park system, based on human impact. The park also experiences severe coastal erosion as a result of winter storms and its vulnerable shoreline.

The park was the subject of a short film in 2011's National Parks Project, directed by John Walker and scored by Chad Ross, Sophie Trudeau and Dale Morningstar. Part of the Jezero crater on Mars was informally named after the park.