The Crosby Garrett Helmet is a copper alloy Roman cavalry helmet dating from the late 2nd or early 3rd century AD. It was found by an unnamed metal detectorist near Crosby Garrett in Cumbria, England, in May 2010. Later investigations found that a Romano-British farming settlement had occupied the site where the helmet was discovered, which was located a few miles away from a Roman road and a Roman army fort. It is possible that the owner of the helmet was a local inhabitant who had served with the Roman cavalry.