The Syro-Malabar Cathedral of St Alphonsa is a Catholic cathedral of the Syro-Malabar rite in Preston, Lancashire. It is the cathedral of the Syro-Malabar Catholic Eparchy of Great Britain, and was previously St Ignatius Church under the Diocese of Lancaster. It is situated close to the Preston city centre, with the entrance on Meadow Street. The building was opened in 1836 and was the first church in Preston to have a spire.