The flag of the state of Hawai?i (Hawaiian: Ka Hae Hawai?i) is the official standard symbolizing Hawai?i as a U.S. state. The same flag had also previously been used by the kingdom, protectorate, republic, and territory of Hawai?i. It is the only state flag of the United States to have been flown under so many various forms of government and the only state flag to feature the Union Flag of the United Kingdom, a holdover of the period in Hawaiian history when it was a British protectorate (1794–1843).