Count Vasily Vasilyevich Orlov-Denisov (8 September 1775 – 24 January 1843) was a Cossack Russian general. He was the son of Vasily Petrovich Orlov, Ataman of the Don Cossacks, and grandson (on his mother's side) of the first Earl of the Cossacks, General of the Cavalry, Fedor Petrovich Denisov. In honour of his grandfather he added his surname to his own, becoming Orlov-Denisov on 26 April 1801.

Count Vasily Vasilyevich Orlov-Denisov
Portrait by George Dawe
Native name	Василий Васильевич Орлов-Денисов
Born	8 September 1775 Patiizbyansky, Land of the Don Cossack Host
Died	24 January 1843 Kharkov, Kharkov Governorate
Allegiance	Imperial Russia
Service/branch	Army
Years of service	1789–1821
Rank	General of the Cavalry
Battles/wars	Russo-Turkish War (1787–1792), Polish uprising (1794), War of the Fourth Coalition, Russia Tarutino Liaskowa Krasny
Relations	Orlov-Denisov family

Vasily Orlov-Denisov is not to be confused with Vasily "Vas'ka" Denisov, who appears as a fictional character in Leo Tolstoy's novel War and Peace. Tolstoy has said the similarity in names was a mistake on his part, arising from the "specially typical character" of Orlov-Denisov. He insisted that "nothing resembling the actual facts of [Orlov-Denisov's] life is ascribed to [Vas'ka Denisov] in the novel."^[1]