Abstract: A ground adapter is used in conjunction with a C-clamp for providing a connection between a ground cable from, for example an electric arc welding machine, to a ground object such as a workpiece. The ground adapter and ground object are firmly retained in contact with one another by a conventional C-clamp. The ground adapter is comprised of a ground base which is designed to receive one or more electrical cables. A plurality of adjustable cowling members may be disposed about one pad or foot of the C-clamp and are releasably secured to the ground base. The location of cowling members on the ground base is adjustable which enables use of the ground adapter with C-clamps having pads of varying sizes.