怀卢库（Wailuku）位于美国夏威夷州毛伊岛中部，是毛伊县的县治所在，面积14.1平方公里。根据美国2000年人口普查，共有12,296人，其中亚裔美国人占42.08%、白人占8.16%。

Wailuku is a census-designated place (CDP) in Maui County, Hawaiʻi, United States. The population was 15,313 at the 2010 census. It is the county seat of Maui County.

Wailuku is located just west of Kahului, at the mouth of the ʻĪao Valley. In the early 20th century Wailuku was the main tourist destination on Maui, though it has since been eclipsed with the rise of the resort towns such as Kaʻanapali, so much that there are no hotels to speak of in Wailuku.