Cauayan can refer to the following places in the Philippines:

Cauayan, a component city in the province of Isabela, Philippines Cauayan, a municipality in the province of Negros Occidental, Philippines

See also Caoayan, a municipality in the province of Ilocos Sur, Philippines Kawayan, a municipality in the province of Biliran, Philippines Meycauayan, a component city in the province of Bulacan, Philippines Tagkawayan, a municipality in the province of Quezon, Philippines