William Henry Fellowes, 2nd Baron de Ramsey (16 May 1848 – 8 May 1925), was a British Conservative politician. De Ramsey was the eldest son of Edward Fellowes, 1st Baron de Ramsey, and Hon. Mary Julia Milles. Ailwyn Fellowes, 1st Baron Ailwyn, was his younger brother. He purchased a commission as a cornet in the Life Guards on 16 March 1867; he retired as a captain on 21 July 1877.