Henry FitzJames (6 August 1673 – 16 December 1702), titular 1st Duke of Albemarle in the Jacobite peerage, was the illegitimate son of King James II of England and VII of Scotland by Arabella Churchill, sister of the first Duke of Marlborough.

FitzJames was born in St. James's Square, Westminster, then in the county of Middlesex, England.

On 20 July 1700, he married Marie Gabrielle d'Audibert de Lussan, daughter and heiress of Jean d'Audibert, Comte de Lussan and Marie Françoise Raimond.

He had a posthumous daughter, Lady Christine Marie Jacqueline Henriette FitzJames, born 29 May 1703 at Bagnols sur Cèze, Languedoc, France, who became a nun.

His widow remarried in May 1707, at Saint-Germain-en-Laye, John Drummond, Marquess of Forth, later 2nd Duke of Melfort (1682–1754).