The Roman Catholic Diocese of Incheon (Latin: Dioecesis Inchonensis) is a diocese of the Latin Church of the Catholic Church located in Incheon, South Korea.

The diocese is suffragan to the Archdiocese of Seoul.

On 6 June 1961 Pope John XXIII erected as an Apostolic Vicariate of Incheon.

It was elevated to a diocese the next year on 10 March.

This article on a Roman Catholic diocese in Asia is a stub.