Sir Kenneth Charles Calman, KCB, DL, FRSE (born 25 December 1941) is a Scottish cancer researcher and former Chief Medical Officer of Scotland, and then England and Wales. He was Warden and Vice-Chancellor of Durham University from 1998 to 2006, before becoming Chancellor of the University of Glasgow. He has held the position of Chair of National Cancer Research Institute since April 2008. From 2008 to 2009, he was convener of the Calman Commission on Scottish devolution.