| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| João de Casal | |
| Bishop of Macau | |
| Church: | Catholic Church |
| Diocese: | Diocese of Macau |
| Term: | 1690–1735 |
| Predecessor: | João Pinto da Piedade |
| Successor: | Eugénio Trigueiros |
| Consecration: | 25 Jul 1690 |
| Consecrated By: | Veríssimo de Lencastre |
| Birth Date: | 1641 |
| Birth Place: | Castelo de Vide, Alentejo, Portugal |
| Death Date: | 20 Sep 1735 (age 94) |
João de Casal, O.S.A. (Latin: Joannes do Casal) was a Roman Catholic prelate who served as Bishop of Macau (1690–1735).[1]
João de Casal was born in Castelo de Vide, province of Alentejo, Portugal in 1641.[2] He was ordained in the Order of Saint Augustine.[2] On 10 Apr 1690, he was appointed during the papacy of Pope Alexander VIII as Bishop of Macau.[2] On 25 Jul 1690, he was consecrated bishop by Veríssimo de Lencastre, Archbishop Emeritus of Braga with Agostinho da Anunciação, Archbishop of Goa, and José Saldanha, Bishop of Funchal, serving as co-consecrators.[2] He took possession of the diocese on 20 June 1692.[3] He died on 20 Sep 1735.[2]