Ross MacMahon

{{short description|Catholic bishop (1698-1748)}}

{{one source|date=January 2020}}

{{Use dmy dates|date=November 2019}}

{{Use Irish English|date=November 2019}}

{{Infobox Christian leader

| type = Bishop

| honorific-prefix = The Most Reverend

| name = Ross Roe MacMahon

| title = Archbishop of Armagh, Primate of All-Ireland

| image =

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| church = Roman Catholic Church

| archdiocese =

| diocese =

| see = Armagh

| term = 1747 — 1748

| predecessor = Bernard MacMahon

| successor = Michael O'Reilly

| ordination =

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| consecration =

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| birth_date = {{birth year|1698}}

| birth_place = Enagh, County Monaghan

| death_date = 29 October {{death year and age|1748|1698}}

| death_place =

| previous_post = Bishop of Clogher
(1737–1747)

}}

Ross Roe MacMahon (born 1698 in Enagh, County Monaghan) was ordained to the priesthood in 1727. He was appointed as Roman Catholic Bishop of Clogher on 8 November 1738 following the appointment of his predecessor, Bernard MacMahon, to the see of Armagh on 8 November 1737.[http://www.catholic-hierarchy.org/bishop/bmcmar.html History of Bishop Ross Roe MacMahon] Bishop MacMahon was himself appointed to the same see on 3 August 1747; he died in Armagh on 29 October 1748. Bishop MacMahon served as Bishop of Clogher for just under nine years.