The Cathedral of St Stephen is the heritage-listed cathedral church of the Roman Catholic Archdiocese of Brisbane and seat of its archbishop in Brisbane, Queensland, Australia. St Stephen's was only meant to serve as a temporary seat for the archbishop, and plans for a replacement were made with the Holy Name Cathedral, however the cathedral was never built.

The Holy Name Cathedral was a planned but never-built Roman Catholic cathedral for the city of Brisbane, Queensland, Australia. Designed by Hennessy, Hennessy & Co, initially in an English Baroque style inspired by St Paul's in London, it was intended to have been the largest church building of any Christian denomination in the Southern Hemisphere. James Duhig, the Archbishop of Brisbane, was the chief proponent of the project.