茂宜岛（又作毛伊岛，英文：the island of Maui，英语发音：/ˈmaʊ.iː/）是美国夏威夷州的第二大岛，面积为727.2平方英里（1,883平方公里，在美国岛屿中排名第17位）。 茂宜岛是夏威夷州的知名观光地，也是茂宜县四个岛屿中最大的岛屿。2010年该岛人口为144,444人，在夏威夷群岛中排名第三，次于欧胡岛和夏威夷岛。茂宜岛的商业中心和最大的居民点位于卡胡路伊，该处在2010年的人口为26,337人。瓦伊鲁库是茂宜县政府所在地，也是岛上第三大居民点。其他主要的地区包括基黑（包括瓦伊里和马克纳，是岛上第二大居民点）；拉海纳（包括卡纳帕利和卡帕卢阿）；马卡瓦奥；帕伊亚；谷拉；海库以及哈纳。

The island of Maui (/ˈmaʊ.iː/; Hawaiian: [ˈmɐwwi]) is the second-largest of the Hawaiian Islands at 727.2 square miles (1,883 km) and is the 17th largest island in the United States. Maui is part of the State of Hawaii and is the largest of Maui County's four islands, bigger than Molokaʻi, Lānaʻi, and unpopulated Kahoʻolawe. In 2010, Maui had a population of 144,444, third-highest of the Hawaiian Islands, behind that of Oʻahu and Hawaiʻi Island. Kahului is the largest census-designated place (CDP) on the island with a population of 26,337 as of 2010 and is the commercial and financial hub of the island. Wailuku is the seat of Maui County and is the third-largest CDP as of 2010. Other significant places include Kīhei (including Wailea and Makena in the Kihei Town CDP, which is the second-most-populated CDP in Maui); Lahaina (including Kāʻanapali and Kapalua in the Lahaina Town CDP); Makawao; Pāʻia; Kula; Haʻikū; and Hāna.