Baron Karl Vasilievich Ludwig von Budberg-Bönninghausen (9 July 1775–8 September 1829) was an Imperial Russian cavalry general and nobleman who participated in the Napoleonic Wars.

By birth member of the House of Budberg, German Baltic noble family, Ludwig was born in the Governorate of Livonia, as the son of Baron Ludwig Otto von Budberg-Bönninghausen (1729-1797) and his wife, Baroness Elisabeth Sophie von Löwenstern (1748-1811) Budberg first joined the military at the age of eleven.

He participated in the Italian and Swiss expedition and the Anglo-Russian invasion of Holland in 1799 and was promoted to lieutenant colonel by 1801.

During the War of the Fourth Coalition, Budberg fought in the battles of Guttstadt-Deppen, Heilsberg, Friedland, and Eylau, at which he was wounded in the arm.

In 1811, he was made chief of His Majesty's Life-Guards Cuirassier Regiment, and maintained this command through the French invasion of Russia and the subsequent War of the Sixth Coalition, where he distinguished himself in numerous battles, including Borodino, Kulm, and Leipzig.