The Roman Catholic Diocese of Bandung (Latin: Bandungen(sis)) is a diocese located in the city of Bandung in the ecclesiastical province of the Metropolitan of Jakarta on Java, in Indonesia.

Its cathedral episcopal see is Katedral Santo Petrus (St. Peter's cathedral), in Bandung, Jawa Barat, on Jawa (Java).

(all Roman rite) The Roman Catholic Diocese of Bandung has 14 parochial churches.

Nine of them are located inside the city.

The other five are located outside Bandung.