Commander John Cyril Edmondson, 2nd Baron Sandford, DSC (22 December 1920 – 13 January 2009) was a decorated Royal Navy officer, Church of England clergyman, conservationist and Conservative politician. As a junior minister charged with a review of policy on National Parks, he formulated what became known as the "Sandford principle": if there is a conflict between leisure use of the National Park, and protecting its natural state, the state of the park must be preserved.