Haleakalā National Park is an American national park located on the island of Maui in the state of Hawaii. Named after Haleakalā, a dormant volcano within its boundaries, the park covers an area of 33,265 acres, of which 24,719 acres is a wilderness area. The land was designated a national park in 1976 and its boundaries expanded in 2005.

The island of Maui is an island in the Hawaiian archipelago, its second-largest at 727.2 square miles (1,883 km2). It is the 17th-largest in the United States. Maui is one of Maui County's five islands, along with Molokaʻi, Lānaʻi, Kahoʻolawe, and Molokini.