Caibiran (IPA: ]), officially the Municipality of Caibiran (; ; ), is a municipality in the province of Biliran, Philippines. According to the 2024 census, it has a population of 24,444 people. The town's populace predominantly speak Waray language.
According to the Philippine Statistics Authority, the municipality has a land area of constituting of the total area of Biliran.
Caibiran is politically subdivided into 17 barangays. Each barangay consists of puroks and some have sitios.
In 1948, the barangays of Ungale, Tuo, and Inasuyan were transferred to Kawayan, Biliran.
In the 2024 census, Caibiran had a population of 24,444 people. The population density was .