Abstract: A locking wheel nut cover system for controlling access to wheel nuts used to affix a wheel to a vehicle has a wheel with a wheel rim annular channel. The system has a wheel nut located on an axle stud for securing the wheel to the vehicle. The system has a generally planar round hub cover with a hub cover aperture for positioning in front of a wheel central hub to cover the wheel nuts. The system has a plurality of generally planar elongated locking arms, each having an elongated slot, and a locking arm second end for engaging the wheel rim annular channel. The system has a generally cylindrical keyed lock for engaging the locking arms and the hub cover to secure the system into place for wheel theft protection.