The current Constitution of Poland was founded on 2 April 1997. Formally known as the Constitution of the Republic of Poland, it replaced the Small Constitution of 1992, the last amended version of the Constitution of the Polish People's Republic, known from December 1989 as the Constitution of the Republic of Poland. The five years after 1992 were spent in dialogue about the new character of Poland. The nation had changed significantly since 1952 when the Constitution of the Polish People's Republic was instituted. A new consensus was needed on how to acknowledge the awkward parts of Polish history; the transformation from a one-party system into a multi-party one and from socialism towards a free market economic system; and the rise of pluralism alongside Poland's historically Roman Catholic culture.

It was adopted by the National Assembly of Poland on 2 April 1997, approved by a national referendum on 25 May 1997, promulgated by the President of the Republic on 16 July 1997, and came into effect on 17 October 1997.Poland has had numerous previous constitutional acts. Historically, the most significant is the Constitution of 3 May 1791.