St. Paul's Cathedral (), also known as Incheon Cathedral and Dapdong Cathedral, is a Roman Catholic cathedral located in Incheon, South Korea's third largest city.
The church was designed by Fr. Eugene Cost (of the Paris Foreign Missions Society) in a mixture of styles, including Neo-Gothic and Neo-Romanesque.
The Latin rite church serves as the seat of the Diocese of Incheon (Dioecesis Inchonensis or ) which was created in 1962 by Pope John XXIII.