Major General Michael Lawrence Riddell-Webster, CBE, DSO (born December 1960) is a retired British Army officer.

[2] After serving in the Former Republic of Yugoslavia, for which he was awarded the Queen's Commendation for Valuable Service in 2001,[3] he became commanding officer of 1st Battalion the Black Watch in December 2000 and commanded it during the Iraq War in 2003,[4] for which he was awarded the Distinguished Service Order.

[5] Riddell-Webster went on to be Deputy Director Equipment Capability (Ground Manoeuvre) at the Ministry of Defence in October 2003 and commander of the 39th Infantry Brigade in Northern Ireland in December 2005,[6] for which he was also awarded the Queen's Commendation for Valuable Service in 2007.

[7] After that he became Director of the Army Division at the Joint Services Command and Staff College in September 2007,[8] Head of Capability (Ground Manoeuvre) at the Ministry of Defence in December 2008, and Director of the Defence College of Management and Technology in January 2012.

[2] He handed the Castle over to its next governor, Major General Alastair Bruce of Crionaich, on 24 June 2019.