The 34th Armoured Brigade was an armoured brigade of the British Army that saw active service in World War II. It was formed in 1941 as the 34th Army Tank Brigade and subsequently redesignated as the 34th Tank Brigade in February 1945 and became part of the 79th Armoured Division. It was equipped with Churchill tanks and provided close support for assaults by the infantry. During the fighting in North-west Europe from July 1944 to May 1945 the brigade served with both the First Canadian Army and the British Second Army. The brigade was disbanded in early 1946.