The present invention discloses a reversible, height adjustable guitar nut that allows quick reversal from right-handed to left-handed and easy adjustment of the nut height. The reversible, height adjustable guitar nut uses two screws to hold it in a slot of the guitar neck. Removal of the two screws allows the guitar nut plate to be removed from the guitar, rotate the nut plate to switch from right to left handed, and reinstalled on the guitar. The two screws are also designed to provide adjust capability to the height of the guitar nut as needed.