Sir Henry Chamberlain, 1st Baronet (1773– 31 July 1829) was a British diplomat, consul general to Portugal and chargé d'affaires to Brazil. He was created a baronet on 22 February 1828. Henry was a natural son of the Honourable Henry Fane, Clerk to H.M. Treasury, a younger son of Thomas Fane, 8th Earl of Westmorland. He was brought up with the rest of Fane's children as a supposed distant relative, but when Chamberlain expressed interest in one of Fane's daughters (his half sister), he was informed of his true parentage and posted to Portugal in 1834 to become consul general, sailing on board HMS Briton.