Royal elections in Poland were the elections of individual kings, rather than dynasties, to the Polish throne. Based on traditions dating to the very beginning of the Polish statehood, strengthened during the Piast and Jagiellon dynasties, they reached their final form in the Polish–Lithuanian Commonwealth period between 1572 and 1791. The "free election" was abolished by the Constitution of 3 May 1791, which established a constitutional-parliamentary monarchy.

The Polish–Lithuanian Commonwealth, formally known as the Kingdom of Poland and the Grand Duchy of Lithuania, or simply Poland–Lithuania, was a bi-confederal state, sometimes called a federation, of Poland and Lithuania ruled by a common monarch in real union, who was both King of Poland and Grand Duke of Lithuania. It was one of the largest and most populous countries of 16th- to 17th-century Europe. At its largest territorial extent, in the early 17th century, the Commonwealth covered almost 1,000,000 km2 (400,000 sq mi) and as of 1618 sustained a multi-ethnic population of almost 12 million. Polish and Latin were the two co-official languages, and Roman Catholicism served as the state religion.