Abstract: An Adjustable Golf Club adapted to serve the functions of a plurality of golf clubs has a single easily manipulated locking device accommodating adjustment of the club length, loft and lie angle. The club has a blade with a ball striking face, a curved hosel extending from the heel of the blade, a shaft with a fitting slidably receiving the hosel, and a locking screw securing the hosel in a number of related positions to reproduce the lengths, lofts and lie angles of, for example, Nos. 2-10 irons. Indicia on the hosel registers with a window in the fitting to identify the iron number for each adjusted position.