Dinapigue ([ˌdinɐˈpige], sometimes [ˌdinɐˈpigi]), officially the Municipality of Dinapigue (Ibanag: Ili nat Dinapigue; Ilocano: Ili ti Dinapigue; Tagalog/Kasiguranin: Bayan ng Dinapigue), is a municipality in the province of Isabela, Philippines. According to the 2024 census, it has a population of 6,116 people.

Dinapigue used to be a barrio of San Mariano, Isabela. On June 21, 1968, Republic Act No. 5776 declared Dinapigue to be a separate municipality.

Dinapigue or sometimes called Dinapigui is the southernmost coastal town of the province of Isabela. It is one of the four remote and isolated coastal towns of Isabela facing the Philippine Sea on the east and separated from the rest of the province by the Sierra Madre Mountains.

It is bounded by the coastal town of Palanan to the north, San Mariano to the northwest, San Guillermo to the west, Echague to the southwest, Dilasag in the province of Aurora to the south and the Philippine Sea to the east.

Dinapique is situated 272.98 kilometres (169.62 mi) from the provincial capital Ilagan, and 408.34 kilometres (253.73 mi) from the country's capital city of Manila.

Dinapigue is politically subdivided into 6 barangays.  Each barangay consists of puroks while some have sitios.

In the 2020 census, the population of Dinapigue was 5,821 people, with a density of 10 inhabitants per square kilometre or 26 inhabitants per square mile.

Poverty incidence of Dinapigue