Waia

Waia may refer to:
 * Waia language of Papua New Guinea
 * Waia, Sierra Leone, a place in the Koinadugu District of Sierra Leone
 * Waia, Kenya, a settlement in the Mbooni Constituency of Kenya

WAIA may refer to:
 * WAIA, a former radio station of Kentucky, United States
 * WAIA, a former radio station of Florida, United States, whose calls are now used by WFLC