Sir Alexander Phillips Muddiman KCSI CIE (14 February 1875 – 17 July 1928) was a British administrator in India. Muddiman was born in Leighton Buzzard, Bedfordshire, England, and was educated at Wimborne School and University College, London. He joined the Indian Civil Service in 1897 and was posted to Bengal Presidency in 1899 as an assistant collector and magistrate in Bihar. In 1902 he was appointed Under-Secretary to the Government of Bengal, in 1905 Registrar of the Calcutta High Court, and in April 1910 Deputy Secretary of the Legislative Department of the Government of India. He became Secretary in 1915.