Sir (Ambrose) Thomas Stanton KCMG, MD, FRCP (14 November 1875 – 25 January 1938) was a Canadian surgeon, entomologist and health administrator who helped to identify the cause of beri-beri. He later became Chief Medical Adviser to the British Secretary of State for the Colonies. In 1905 he moved to England to continue his medical studies at University College and the London Hospital, earning a Diploma in Tropical Medicine and Hygiene (DTM&H) in 1906. He joined the Hospital for Tropical Diseases as a house surgeon, rising to registrar, and also taught at the London School of Tropical Medicine.