Captain Archibald Henry Maule Ramsay (4 May 1894 – 11 March 1955) was a British Army officer who later went into politics as a Scottish Unionist Member of Parliament (MP). From the late 1930s he developed increasingly strident antisemitic views. In 1940, after his involvement with a suspected spy at the United States embassy, he became the only British MP to be interned under Defence Regulation 18B.