The Diocese of Prosperidad is a diocese of the Latin Church of the Catholic Church in the Philippines.

It was established on October 15, 2024, with its territory comprising the province of Agusan del Sur.

During a preliminary assembly on July 9, 2023, in Kalibo, Aklan, the Catholic Bishops Conference of the Philippines voted in favor of the proposal of Bishop Cosme Almedilla of Butuan for the separation from Butuan of a new diocese that will cover the province of Agusan del Sur, which is considered a “missionary frontier” with a third of its population being indigenous peoples.

Ruben Labajo, an auxiliary bishop from the Archdiocese of Cebu, was appointed by Pope Francis to be its first bishop.

[3][4] The rite of canonical possession-installation was solemnly held at Saint Michael the Archangel Cathedral in Prosperidad on January 28, 2025.