St. Francis Xavier's Cathedral or Geraldton Cathedral is a Roman Catholic cathedral in Geraldton, Western Australia. It is the seat of Bishop of Geraldton. Construction work on the cathedral began on 20 June 1916. The first phase ended with the construction of the nave and the twin towers, topped by two domes, and was completed in 1918. The second phase involved the construction of the crypt, sanctuary and Sisters' Chapel in 1926. The third and final phase, the dome, the transepts and the sacristy were completed and formally opened on 28 August 1938. It is the largest and most imposing work of Priest and Architect John Hawes.