Operation Tempest (Polish: Akcja Burza, Plan Burza; sometimes referred in English as Operation Storm) was a series of uprisings conducted during World War II by the Polish Home Army (Armia Krajowa – the Home Army, abbreviated "AK"), the dominant force in the Polish resistance.

Operation Storm was aimed at seizing control of cities and areas occupied by the Germans while they were preparing their defenses against the Soviet Red Army. Polish underground civil authorities wanted to take power before the arrival of the Soviets.

From its inception the Home Army had been preparing a national armed rising against the Germans. The basic framework of the future rising was created in September 1942. According to the plan, the Uprising was to be ordered by the Polish Commander-in-Chief in exile when the defeat of the Wehrmacht on the Eastern Front became apparent. The Uprising was to begin in Central Poland: in the "General Gouvernement", Zagłębie, Kraków Voivodeship, and the Białystok and Brześć areas.