The

Most Reverend The Most Reverend (abbreviated as The Most Revd or The Most Rev) is an honorific style (form of address), style given to certain (primarily Western Christian, Western) Christian clergy and Christian minister, ministers. It is a variant of the mor ...

John Brett O.P. (?–22 June 1756) was an Irish

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

clergyman who served as the

Bishop of Killala The Bishop of Killala () is an episcopal title which takes its name after the village of Killala in County Mayo, Ireland. In the Roman Catholic Church it remains a separate title, but in the Church of Ireland it has been united with other bis ...

from 1743 to 1748 and as

Bishop of Elphin The Bishop of Elphin (; ) is an Episcopal polity, episcopal title which takes its name after the village of Elphin, County Roscommon, Republic of Ireland, Ireland. In the Catholic Church, Roman Catholic Church it remains a separate title, but ...

from 1748 to 1756.Bishop John Brett
''Catholic Hierarchy website''. Retrieved 30 August 2011.

References

1756 deaths Roman Catholic bishops of Elphin Roman Catholic bishops of Killala Year of birth unknown Irish Dominicans {{Ireland-RC-archbishop-stub