Lieutenant-Colonel Gerald Bryce Ferguson Smyth, DSO and Bar, French Croix de Guerre and Belgian Croix de guerre (7 September 1885 – 17 July 1920) was a British Army officer and police officer who was at the centre of a mutiny in the ranks of the Royal Irish Constabulary during the Irish War of Independence. He was shot and killed by the Irish Republican Army in Cork in 1920.