David Sainsbury, Baron Sainsbury of Turville, English businessman and academic
David John Sainsbury, Baron Sainsbury of Turville, HonFRS, HonFREng (24 October 1940), is a British politician, businessman and philanthropist. From 1992 to 1997, he served as chairman of Sainsbury's, the supermarket chain established by his great-grandfather John James Sainsbury in 1869.

He was made a life peer in 1997 as a member of the Labour Party, and was on a leave of absence from the House of Lords from 15 July 2013 to his retirement 2021. He served in the government as Parliamentary Under-Secretary of State for Science and Innovation from 1998 and 2006.

He is a major donor to the University of Cambridge and in 2011 was elected Chancellor of the University of Cambridge. He also made the largest donation in British political history, giving £8 million to the Liberal Democrats.