The monarchy of Cambodia refers to the constitutional monarchy of the Kingdom of Cambodia. The King of Cambodia is the head of state and head of the ruling Royal House of Norodom. In the contemporary period, the king's power has been limited to that of a symbolic figurehead. The monarchy had been in existence since at least 68 AD except during its abolition from 1970 to 1993. Since 1993, the king of Cambodia has been an elected monarch, making Cambodia one of the few elective monarchies of the world. The king is elected for life by the Royal Council of the Throne, which consists of several senior political and religious figures. Candidates are chosen from among male descendants of King Ang Duong who are at least 30 years old, from the two royal houses of Cambodia.

Constitutional monarchy, also known as limited monarchy, parliamentary monarchy or democratic monarchy, is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in making decisions. Constitutional monarchies differ from absolute monarchies in that they are bound to exercise powers and authorities within limits prescribed by an established legal framework.