The Church of Hawaiʻi, originally called the Hawaiian Reformed Catholic Church, was the state church and national church of the Kingdom of Hawaiʻi from 1862 to 1893. It was the ecclesiastical province of the Anglican Communion in Hawaiʻi, which later merged into the American Episcopal Church during the establishment of the Republic of Hawaii.

The Hawaiian Kingdom, also known as Kingdom of Hawaiʻi, was a sovereign state located in the Hawaiian Islands which existed from 1795 to 1893. It was established during the late 18th century when Hawaiian chief Kamehameha I, from the island of Hawaiʻi, conquered the islands of Oʻahu, Maui, Molokaʻi, and Lānaʻi, and unified them under one government. In 1810, the Hawaiian Islands were fully unified when the islands of Kauaʻi and Niʻihau voluntarily joined the Hawaiian Kingdom. Two major dynastic families ruled the kingdom, the House of Kamehameha and the House of Kalākaua.