Hawai'i Volcanoes National Park, established on August 1, 1916, as Hawaii National Park is an American national park located in the U.S. state of Hawaii on the island of Hawaii. The park encompasses two active volcanoes: Kilauea, one of the world's most active volcanoes, and Mauna Loa, the world's most massive shield volcano. The park provides scientists with insight into the birth and development of the Hawaiian Islands, and ongoing studies into the processes of volcanism. For visitors, the park offers dramatic volcanic landscapes, as well as glimpses of rare flora and fauna.

In recognition of its outstanding natural values, Hawai'i Volcanoes National Park was designated as an International Biosphere Reserve in 1980 and a World Heritage Site in 1987. In 2012, the park was depicted on the 14th quarter of the America the Beautiful Quarters series.

On May 11, 2018, the park was closed to the public in the Kilauea volcano summit area, including the visitor center and park headquarters, due to explosions and toxic ash clouds from Halema'uma'u, as well as earthquakes and road damage. Portions of the park, including the visitor center, reopened to the public on September 22, 2018. As of 2020, most of the park is open; however, some road segments and trails as well as the Jaggar Museum of the Hawaiian Volcano Observatory remain closed to visitors.

Eruptive activity, ground collapses and explosions in the park ceased in early August of 2018, and the lull in eruptive activity at Kilauea continues.