Abstract: A yard hydrant locking collar has two C-shaped steel hardened plates connected together at one end by a rivet. The rivet acts like a hinge and allows the top and bottom plates to swivel open and closed. The other end of each top and bottom plates has a locking hole. A one inch tapered slot is cut into the top plate near the locking hole. The top and bottom plates are rotated so the collar fits around the hydrant pipe. The locking holes and slot are positioned near the hydrant locking hole and the collar locking holes are aligned. A padlock is opened and tilted away from the pipe and the free arm of the padlock is placed through the locking hole of the hydrant handle and positioned over the locking holes of the collar. The padlock is then tilted back towards the pipe. The tapered slot allows the padlock to move towards the pipe so that the free end of the padlock can move through the locking holes. Once the free end of the padlock passes through the collar locking holes, the padlock can be raised and locked.