The 8th Infantry Brigade was an infantry brigade of the British Army. It was formed before the First World War as part of the 3rd Infantry Division. As part of that division it spent the entire war on the Western Front. The Brigade was also active during the Second World War. During the Second World War it was made up of the 1st Battalion, the Suffolk Regiment, the 2nd Battalion, the East Yorkshire Regiment, and the 1st Battalion, the South Lancashire Regiment.