The Yugoslav National Party (Serbo-Croatian: Jugoslavenska nacionalna stranka, Југославенска национална странка, JNS; Slovene: Jugoslovanska nacionalna stranka), established as Yugoslav Radical Peasants' Democracy (Serbo-Croatian: Jugoslavenska radikalna seljačka demokratija; Slovene: Jugoslovanska radikalno-kmečka demokracija), was the sole-ruling party of Yugoslavia during the period of royal authoritarian dictatorship from 1929 to 1934.
On 6 January 1929, the king dissolved the Parliament and abolished the constitution, and banning all political parties.
In May 1932, the Yugoslav Radical Peasants' Democracy was established to support Alexander's government, under the leadership of Petar Živković.
Petar Živković, Milan Srškić and Nikola Uzunović were the country's prime ministers while the party was in power.
[1] A former member of the Yugoslav National Party Milan Stojadinović formed a successor party, called Yugoslav Radical Union (JRZ), based on a more conservative political alliance, which included the Yugoslav Muslim Organization (JMO) and Slovene People's Party (SLS).