The November Uprising (1830–31), also known as the Polish–Russian War 1830–31 or the Cadet Revolution,

was an armed rebellion in the heartland of partitioned Poland against the Russian Empire. The uprising began on 29 November 1830 in Warsaw when young Polish officers from the military academy of the Army of Congress Poland revolted, led by Lieutenant Piotr Wysocki. Large segments of the peoples of Lithuania, Belarus, and the Right-bank Ukraine soon joined the uprising. Although the insurgents achieved local successes, a numerically superior Imperial Russian Army under Ivan Paskevich eventually crushed the uprising.

The Russian Emperor Nicholas I decreed that henceforth Russian-occupied Poland would lose its autonomy and become an integral part of the Russian Empire. Warsaw became little more than a military garrison, and its university closed.