Lord Nassau Powlett KB (23 June 1698 – 24 August 1741) was an English nobleman and politician, the only son of Charles Powlett, 2nd Duke of Bolton by his third wife Henrietta Crofts.
In 1725, he became one of the founder knights of the Order of the Bath.
He married Lady Isabella Tufton, daughter of Thomas Tufton, 6th Earl of Thanet, by whom he had one daughter: