Sir Frederick Augustus Wetherall, GCH (1754–1842) was a British General, of Castle Bear House, Ealing. He took part in the conquest of Java during the Napoleonic Wars, during which campaign he was assisted by his son George Wetherall. In 1817 he married, at St. Margaret's, Westminster, Mrs Broad, widow of Major Broad and second daughter of William Mair Esq. of Kensington, Middlesex.