Clare Husted Mountbatten, Marchioness of Milford Haven (née Steel; born 2 September 1960), is a British aristocrat, journalist, polo player and brand ambassador.

Lady Milford Haven is the daughter of Anthony Nigel Steel of Rock House Farm, Lower Froyle, Hampshire, and his wife, Anne Husted.

Her sister, Louise Helen Steel (born 1956), married Count Don Ludovico del Balzo, dei Duchi di Presenzano, son of Count Don Giulio del Balzo, dei Duchi di Presenzano and Donna Maria Elisabetta, dei Marchese Cavalletti dell'Oliveto Sabino, on 30 April 1983; they have three children.

[2][3] She married Nicholas Philip Wentworth-Stanley (born 1954), a Lloyd's List's underwriter, in 1985; they later divorced in 1997.

With her first husband, she had three children: She married George Mountbatten, 4th Marquess of Milford Haven in Nantucket, Massachusetts, on 20 August 1997, without issue.