Colonel Nathaniel Montgomery-Moore (1757 – 4 December 1834) of Garvey, Co. Tyrone and Fassaroe Castle, Co. Wicklow was an Irish Member of Parliament.
His father's first wife was Catharine Willoughby, daughter of Colonel Hugh Willoughby of Carrow, County Fermanagh in 1746, by whom he had Nathaniel's three half-brothers Colonel John Montgomery (M.P.
Died unmarried in Madras, India), Revd Robert Montgomery (1753–1825, Rector of Monaghan).
[1] He was appointed Lieutenant-Colonel of the Royal Tyrone Militia on 1 June 1794 and commanded the regiment during the Irish Rebellion of 1798.
He had married Mary Anne, the daughter of Alexander Boyd, of Ballycastle, Co. Antrim and had four sons.