Count (later Prince) Andrey Kirillovich Razumovsky (Russian: Андре́й Кири́ллович Разумо́вский, Rasumovsky; Ukrainian: Андрі́й Кири́лович Розумо́вський, Andriy Kyrylovych Rozumovskyi; 2 November 1752 – 23 September 1836) was a Russian diplomat who spent many years of his life in Vienna. His name is transliterated differently in different English sources, including spellings Razumovsky, Rasoumoffsky, and Rasoumoffsky, the last of which being used by the British Government for its official translation from the French of the Paris peace treaty of 1815 and the Final Act of the Congress of Vienna.
Razumovsky was the son of Kirill Razumovsky, the last Hetman of Zaporizhian Host and Catherine Naryshkina, a cousine of Tsarin Elizabeth of Russia. He was also a nephew of Aleksey Grigorievich Razumovsky, called the "Night Emperor". The elder Rasumovsky's late Baroque palace on the Nevsky Prospekt is a minor landmark in Saint Petersburg. In 1792 Andres Kyrillovitch was appointed the Tsar's diplomatic representative to the Habsburg court in Vienna, one of the crucial diplomatic posts during the Napoleonic era. He was a chief negotiator during the Congress of Vienna that resettled Europe in 1814, and asserted Russian rights in Poland. In 1808 he established a house string quartet consisting of Ignaz Schuppanzigh, Louis Sina, Franz Weiss, and Joseph Linke. Razumovsky was an accomplished amateur violinist, and also known as a competent torban (Ukrainian theorbo) player. Of four torbans known to have been in his possession one is preserved in the Kunsthistorisches Museum in Vienna. His commissioning three string quartets from Beethoven in 1806 was the act that has made his name familiar. He asked Beethoven to include a "Russian" theme in each quartet: Beethoven included Ukrainian themes in the first two. Razumovsky was the brother-in-law of another of Beethoven's patrons, Prince Joseph Franz von Lobkowitz. His first wife, Countess Elisabeth von Thun was a sister in law of Count Carl von Lichnowsky.