Kamehameha Day on June 11 is a public holiday of the state of Hawaii in the United States. It honors Kamehameha the Great, the monarch who first established the unified Kingdom of Hawaiʻi — comprising the Hawaiian Islands of Niʻihau, Kauaʻi, Oʻahu, Molokaʻi, Lānaʻi, Kahoʻolawe, Maui and Hawaiʻi. While he was king, Hawaii was a center of the fur and sandalwood trade. Pineapples were brought to Hawaii from Spain in 1813 and coffee was first planted in 1818, a year before he died. In 1883 a statue of King Kamehameha I was dedicated in Honolulu by King David Kalākaua (this was duplicate, because the original statue was lost at sea). There is another duplicate of this statue in Emancipation Hall at the Capitol Visitor Center in Washington, D.C.

The holiday was first established by royal decree of the ruling great grandson Kamehameha V on 1871.^[1] The first observance of the holiday happened the following year. Late 19th century celebrations of Kamehameha Day featured carnivals and fairs, foot races, horse races and velocipede races. Kamehameha Day was one of the first holidays proclaimed by the Governor of Hawaiʻi and the Hawaiʻi State Legislature when Hawaiʻi achieved statehood in 1959.