The Constitution of the Czech Republic (Czech: Ústava České republiky) is the supreme law of the Czech Republic. The current constitution was adopted by the Czech National Council on 16 December 1992. It entered into force on 1 January 1993, replacing the 1960 Constitution of Czechoslovakia and the constitutional act No. 143/1968 Col., when Czechoslovakia gave way to the Slovak Republic and the Czech Republic in a peaceful dissolution.
The constitution is a constitutional act, and together with other constitutional acts constitutes the so-called constitutional order of the Czech Republic, or the constitution (with a small c). While the Charter of Fundamental Rights and Basic Freedoms (Listina základních práv a svobod, No. 2/1993 Coll.), an equally important constitutional act, asserts human and civil rights, the Constitution is concerned with state sovereignty and territorial integrity, and defines the institutions governing the state.