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 of Catherine Naryshkina , a cousin of Tsarina Elizabeth of Russia. (He was also a nephew of the Tsarina's lover, 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 Andrey 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 re-organised Europe in 1814, and asserted Russian rights in Poland.