Modigliana Cathedral, otherwise the Church of Santo Stefano Papa is a Roman Catholic cathedral and the principal church of Modigliana in Emilia-Romagna, Italy. It is dedicated to the sainted Pope Stephen I. An ancient church, it was made the seat of the bishops of Modigliana on the creation of the diocese in 1850, and from 1986 has been a co-cathedral in the Diocese of Faenza-Modigliana.