Francis Edward Mostyn was a Welsh Catholic prelate who served as Archbishop of Cardiff from 1921 until his death in 1939.
- Occupation
- Catholic priest, Catholic bishop
- Position held
- Roman Catholic Archbishop of Cardiff, Roman Catholic Bishop of Menevia, titular bishop, Apostolic Vicar of Wales
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- August 6, 1860
- Died
- October 25, 1939