Major-General Thomas Gordon Rennie CB DSO MBE (3 January 1900 – 24 March 1945) was a British Army officer who served with distinction during World War II.

He was injured on 13 June but recovered quickly and was given command of the 51st (Highland) Infantry Division, which he led for the rest of the campaign in Western Europe until he was killed in action during Operation Plunder, the Allied crossing of the River Rhine, in March 1945.

[1][2][3][4] After attending the Staff College, Camberley from 1933 to 1934, he saw active service in the Second World War, was taken prisoner at Saint-Valery-en-Caux during the final stages of the Battle of France in June 1940, but then escaped nine days later.

[6][7][3] Towards the end of 1943 it was decided to withdraw the 51st Division, together with three other battle-experienced formations, back to Britain in order to strengthen the Anglo-Canadian 21st Army Group for the Allied invasion of Normandy, scheduled to take place in the spring of 1944.

On 12 December Rennie was promoted to the acting rank of major-general and received a new appointment as the General Officer Commanding (GOC) of the 3rd Infantry Division.