Co-regency was common in ancient Egypt, and was always between the king and his son. In modern Egypt regency was also used, although not as widely as in ancient Egypt.  Regency has not always been from father to son, there were many cases in which the regent was not a son, sometimes councils were formed to serve as a regent for the ruler. The most famous regency case in Modern Egypt was that of King Farouk after the death of his father King Fouad. The aim of this article is to examine the regency system in Modern Egypt. Actually, there were many advantages to the regency system, as it would prepare the future ruler to rule, and submit to the control of the government. Also, there were disadvantages of regency, as it might give the opportunity for the seizure of the throne by the regent.