Thomas Loftus Townshend LewisCBE (27 May 1918 – 9 April 2004) was an internationally renowned English obstetrician / gynecologist who served on the council of theRoyal College of Obstetricians and Gynaecologists as secretary (1961–1968) and later as senior vice president (1975–1978). He was the author of three books on obstetrics/ gynecology, one of which is considered a classic text on the topic:Progress in Clinical Obstetrics and Gynaecology. Lewis was appointed as aCommander of the Order of the British Empire in 1979.

Lewis was born inHampstead,North London. Raised by his paternal grandparents in Cape Town, South Africa, until the age of 15, he then went to London to live with his fatherNeville Lewis. His grandfather had beenmayor of Cape Town. He studied medicine atJesus College, Cambridge, before enlisting as a doctor in theSouth African Air Force in 1943, and married Alexandra "Bunty" Moore in 1946. In 1948 he was appointed consultant atGuy's Hospital in London, and was consultant forQueen Charlotte's Maternity Hospital andChelsea Hospital for Women from 1950 until his retirement in 1983.

Lewis was an avid athlete, and was selected to play for theEngland national rugby union team, although illness prevented him from representing his country.

Lewis died at his home inWimbledon, London, aged 85.

• Kenney, Anthony (14 June 2004)."Obituary: Tom Lewis".The Guardian.
• Coltart, T.; Lewis, J.; Kenny, A. (26 June 2004)."Thomas Loftus Townshend Lewis".The BMJ.328 (7455): 1570.6.doi:10.1136/bmj.328.7455.1570-e.PMC 437206.