Native Hawaiian tradition gives the origin of the island’s name in the legend of Hawaiʻiloa, the navigator credited with discovery of the Hawaiian Islands. According to that legend, Hawaiʻiloa named the island of Maui after his son, who in turn was named for the demigod Māui. The earlier name of Maui was ʻIhikapalaumaewa. The Island of Maui is also called the “Valley Isle” for the large isthmus between its northwestern and southeastern volcanoes and the numerous large valleys carved into both mountains.
Maui is known as the 'Valley Isle."