Wailua, Hawaiian for two waters, may refer to:

Places

Hawaii, United States

Kauai Wailua, Kauai, a town on the east coast Wailuā Homesteads, Hawaii, a nearby town in the hills to the west Wailua River, a river in eastern Kauai Wailua Falls, a waterfall along the river Wailua River State Park, a park along the river

Maui Wailua, Maui County, Hawaii, a census-designated place on the north coast Wailua Valley State Wayside Park, a nearby park

Indonesia A city in Ambelau, Indonesia

Other Hyposmocoma wailua, a moth endemic to Kaua'i

See also Waialua, Hawaii