The Pětka, or Committee of Five, was an unofficial informal extraparliamentary semi-constitutional political forum that was designed to cope with political difficulties of the First Republic of Czechoslovakia. Founded in September 1920, it was a council of leaders of the coalition parties that made up the Czechoslovak government. Its name came from the Czech word for "five" and is pronounced pyetka. It played a crucial role in the country's politics.

The First Czechoslovak Republic, often colloquially referred to as the First Republic, was the first Czechoslovak state that existed from 1918 to 1938, a union of ethnic Czechs and Slovaks. The country was commonly called Czechoslovakia, a compound of Czech and Slovak; which gradually became the most widely used name for its successor states. It was composed of former territories of Austria-Hungary, inheriting different systems of administration from the formerly Austrian and Hungarian territories.