Muqrin bin Abdulaziz Al Saud is a Saudi Arabian politician, businessman, and former military aviator who was briefly Crown Prince of Saudi Arabia from January to April 2015, during the first three months of his half-brother King Salman's reign. He is the 35th son of King Abdulaziz, born to Abdulaziz's Yemeni concubine Baraka. Since the death of Abdulaziz's 36th son Hamoud in 1994, Muqrin has been the youngest surviving son of the king.

The crown prince of Saudi Arabia is the second-most important position in Saudi Arabia, second to the King, and is his designated successor. Currently, the Crown Prince assumes power with the approval of the Allegiance Council after he is nominated by the King. This system was introduced to the country during the reign of King Abdullah. In the absence of the King, an order is issued to have the Crown Prince manage the affairs of the state until the King's return.