An illuminating rear bow sight with a self contained illumination means and power source is disclosed. The sight hereby satisfies the need of archers and hunters for a less cumbersome, quieter and more efficient rear bow sight that will provide a clear view of the target and sighting pins and enable a more accurate shot downrange. This sight is mounted directly within the strings of a multi-string bowstring. The power source contained internally in the structure of the disclosed rear bow sight is a stick-type battery with an LED light mounted to the end of said battery. The target is sighted over a V-shaped portion of the sight, which is illuminated via internal LED light to allow the shooter a clearer view of the target and sighting pins.