Leo Joseph Suenens
- Category : 1904-births
- Type : MGE
- Profile : 3/5 - Martyr / Heretic
- Definition : Split - Small (12,35)
- Incarnation Cross : RAX Maya 2
Belgian prelate of the Roman Catholic Church. He served as Archbishop of Mechelen-Brussel from 1961 to 1979, and was elevated to the cardinalate in 1962. Suenens was a leading voice at the Second Vatican Council and advocated aggiornamento in the Church. He died from thrombosis on 6 May 1996 in Brussels.