Thomas Lewis, CBE, FRS^[1] (Cardiff, 26 de dezembro de 1881 — Rickmansworth, 17 de março de 1945) foi um cardiologista britânico.

• Clinical Electrocardiography 2nd edition 1913
• Clinical disorders of the heartbeat: a handbook for practitioners and students. Published 1912 by Shaw & Sons, London
• The Soldier´s Heart and the Effort Syndrome, 1918
• The blood vessels of the human skin and their responses, 1927
• Diseases of the Heart, 1932
• Bücher von Thomas Lewis im Internet Archive
• J. C. Meakins, J. Parkinson, E. B. Gunson, T. F. Cotton, J. G. Slade, A. N. Drury, T. Lewis: A Memorandum UPON HEART AFFECTIONS IN SOLDIERS: WITH SPECIAL REFERENCE TO PROGNOSIS OF "IRRITABLE HEART." In: British medical journal. Band 2, Nummer 2908, September 1916, S.418–420, PMID 20768301, PMC2354720.

• Entry for Lewis in the Royal Society's Library and Archive catalogue's details of Fellows (accessed 28 April 2008)
• Thomas Lewis 1881-1945, Drury and Grant, Obituary Notices of Fellows of the Royal Society, Vol. 5, No. 14, pp.179–202
• Electrocardiography and Electrophysiology: Einthoven and Lewis (with pictures), Jerónimo Farré, Madrid Arrythmia Meeting, 21 September 2003
• Review of a biography of Lewis: Sir Thomas Lewis: Pioneer Cardiologist and Clinical Scientist, Arthur Hollman, 1997
• Sir Thomas Lewis: Pioneer Cardiologist and Clinical Scientist (1997) by Arthur Hollman. ISBN 3 540 76049 0