Sir John Southwood Jennings CBE FRSE FGS (born 30 March 1937) is a British geologist who was Chancellor of Loughborough University, having previously been chairman of Shell Transport and Trading from 1993 to 1997, and a director until 2001. Sir John succeeded Sir Denis Rooke to become Loughborough University's fourth Chancellor in 2003, he retired from this position in July 2010