The Romanian royal family was the ruling dynasty of the Kingdom of Romania, a constitutional monarchy in Central-Eastern Europe. The kingdom existed from 1881, when Carol I of Romania was proclaimed king, until 1947, when the last king, Michael I of Romania, was forced to abdicate and the Parliament proclaimed Romania a republic. Soon after, upon the establishment of the constitution of 13 April 1948, Romania became a people's republic, a state that lasted until 1989.

The Kingdom of Romania was a constitutional monarchy that existed from 13 March (O.S.) / 25 March 1881 with the crowning of prince Karl of Hohenzollern-Sigmaringen as King Carol I, until 1947 with the abdication of King Michael I and the Romanian parliament's proclamation of the Romanian People's Republic.