Sir Kenneth Lewis (1 July 1916 – 2 July 1997) was a Conservative Party politician in the United Kingdom. He was Member of Parliament of the United Kingdom for Rutland and Stamford from 1959 to 1983, and following boundary changes for Stamford and Spalding from 1983 to 1987.

Son of William and Agnes Lewis, Kenneth Lewis was born and educated in Jarrow, Co. Durham, and attended Edinburgh University. He was a Labour and Personnel Executive with shipbuilders Hawthorn Leslie and Company of Hebburn, and afterwards with the County of London Electricity Supply Company. He served with the RAF during World War II as a staff officer at Allied HQ Europe, the Air Ministry, and with a Pathfinder Squadron. He started his own shipping and travel business. He was married to Jean Lewis in 1948, and had two children: Kaye Michie and Christopher Lewis. He lived in Preston, near Uppingham, Rutland.

From 1949 to 1952 he was a member of Middlesex County Council, and contested Parliamentary elections as Conservative candidate in 1945 and 1950 at Newton, and at Ashton-under-Lyne in 1951.