The Dean of Tuam is a post held in the Diocese of Tuam, as head of the cathedral chapter from after the creation of the diocese at the Synod of Rathbreasail in 1111.
A dean is often the chief resident cleric of a cathedral or other collegiate church and the head of the chapter of canons. Some cathedral chapters are headed by Archpriests, Provosts or ( as in the mediaeval chapters of St David's and Llandaff until later reforms) a Precentor. If the cathedral or collegiate church has its own parish, the dean is now generally also rector of the parish. In the Church of Ireland dioceses of Clogher, Connor, and Dromore the roles are, however, often separated.
Since the Henrician Reformation, there have been parallel successions, one Church of Ireland, the other Roman Catholic.
1230 - Máel Muire Ó Lachtáin. Became archbishop in 1236. "He undertook a pilgrimage to Jerusalem, and committed an account of his travels to writing. He died at Athlone, shortly before Christmas, in the year 1249."
1282 - Constantine O'Dowd.
133? - Philip Hanlain, died 19 June 1339.
1339 - Denis Mac Áeda, son of Aedh Mac Áeda, succeeded. Possibly kinsman of Máel Sechlain Mac Áeda.
1394 - James.
1399 - James Caer, Carr, possibly the same person
1523 - Thomas.
List of Deans (Church of Ireland)
The Dean of Tuam is based at the Cathedral Church of St Mary in Tuam in the Diocese of Tuam within the united bishopric of Tuam, Killala and Achonry of the Church of Ireland.
1558–1573 - William O'Mullally (afterwards Archbishop of Tuam 1573)
1573 - Edward Browne
?1604–1605 - Richard Boyle
1609–1610 - Abel Walsh
1625–?1637 - Thomas Peyton
1638? - John King
1661 - William Buchanan
1669–1686 - James Wilson
1686–1712 - Robert Echlin (murdered 1712)
1712 - John Hinton and/or Thomas Butler.
1716 - William White? (also Dean of Kilfenora 1716)
1724 - Jonathan Bruce? (also Dean of Kilfenora 1724)
?–1743 __ Hinton
1743–1756 - Isaac Gervais
1756–1759 - Robert Johnson (afterwards Bishop of Cloyne 1759)
1759–1775 - Daniel le Tablere
1775–1782 - Robert Clarke
1782–1807 - Joshua Berkeley
1807–1808 - James Mahon (afterwards Dean of Dromore 1808)
1809–1810 - John William Keatinge (afterwards Dean of St Patrick's Cathedral 1810)
1810–1813 - Richard Bourne (afterwards Chancellor of Armagh, 1813)
1813–1849 - Thomas Carter
1850–1867 - Hon Robert Plunket
1867–1878 - Charles Henry Seymour
1879–1898 - William Chambers Townsend
1898–1904 - Andrew C. Tait
1904–1917 - John Geddes
1917-1923 – John Orr (afterwards Bishop of Tuam, Killala and Achonry 1923)
c1955– Joseph Jackson
1966–1981 Walter Cyril Spence
1981–1993 William James Grant
1993–1996 Anthony Previté
1997–1999 Ian Deighton Corbett
2000–present Alistair Grimason
