| Type: | Bishop |
| Bernard MacMahon | |
| Archbishop of Armagh | |
| Church: | Roman Catholic Church |
| See: | Armagh |
| Term: | 1737 - 1747 |
| Successor: | Ross Roe MacMahon |
| Birth Place: | Enagh, County Monaghan |
| Death Date: | [1] |
| Death Place: | Armagh |
| Previous Post: | Bishop of Clogher (1727 - 1737) |
Dr. Bernard MacMahon (1680 - 27 May 1747) was Bishop of Clogher 1727 - 1737 and Archbishop of Armagh 1738 - 1747.
MacMahon was appointed as Roman Catholic Bishop of Clogher on 17 August 1727,[2] following the death of his predecessor, Hugh MacMahon. Bernard MacMahon was transferred to the position of Archbishop of Armagh on 8 November 1737.[3] In 1741, he would go into hiding as a result of him not promoting a priest to a parish; this would result in a warrant being issued for his arrest.[4] [5] He died in Armagh on 27 May 1747.[1]