| Honorific-Prefix: | The Rt Hon and Most Rev[1] |
| Nathaniel Alexander | |
| Honorific-Suffix: | DD |
| Order: | Bishop of Clonfert and Kilmacduagh |
| Term Start: | 1802 |
| Term End: | 1804 |
| Order2: | Bishop of Killaloe and Kilfenora[2] |
| Term Start2: | May 1804 |
| Term End2: | November 1804 |
| Order3: | Bishop of Down and Connor |
| Term Start3: | 1804 |
| Term End3: | 1823 |
| Order4: | Bishop of Meath |
| Term Start4: | 1823 |
| Term End4: | 1840 |
| Spouse: | Anne née Jackson |
Nathaniel Alexander (1760 – 21 October 1840), was an Anglican bishop in Ireland during the first half of the 19th century.[3]
He was born in 1760 and educated at Harrow and Emmanuel College, Cambridge. He was appointed[4] Bishop of Clonfert and Kilmacduagh[5] in 1802 [6] and translated to Killaloe in 1804. Only six months later he became Bishop of Down and Connor.[7] He was translated for a third time to Meath[8] in 1823.[9] A nephew of James Alexander, 1st Earl of Caledon; father of Robert Alexander, Archdeacon of Down from 1814 to 1828;[10] and uncle of William Alexander, Archbishop of Armagh from 1896 to 1911,[11] he died in post on 21 October 1840.[12]