Kirill Grigorievich Razumovsky (1728, 1803) was a Russian political figure and count since 1744, as well as the last hetman of Little Russia from 1750 to 1764. He was born on March 29, 1728, in the village of Lemeshy in the Chernigov province to a Little Russian Cossack family and was the younger brother of Alexei Grigorievich Razumovsky. In his childhood, he worked as a shepherd, but his fate changed dramatically in 1742 due to the patronage of his brother, who was a favorite of Empress Elizabeth Petrovna. Kirill was summoned to Petersburg, and in 1743 he went to Germany for education. At the University of Berlin, he attended lectures by mathematician Leonhard Euler, and then traveled through France and Italy.

Returning to Petersburg in 1746 at the age of 18, Razumovsky was appointed president of the Academy of Sciences. Although he was little involved in its affairs, it is known that he supported Mikhail Vasilyevich Lomonosov. In 1744, while still studying abroad, Kirill received the title of count, and in 1750 his brother Alexei secured for him the position of hetman of Little Russia. He effectively transferred the management of the Academy of Sciences and Ukraine to his mentor Grigory Nikolayevich Teplov.

In 1762, Emperor Peter III, planning a war with Denmark, appointed Kirill commander-in-chief of the troops. That same year, Razumovsky, commanding the Izmailovsky regiment, participated in the coup in favor of Catherine II and became a senator. Expecting gratitude, he requested that the hetmanate be passed down as hereditary property to his family, but instead, in 1764, the hetmanate was abolished. As compensation, he received the title of general field marshal, which seemed ironic, as he had not participated in battles. In 1765 and 1767, he was abroad, and after returning to Russia in 1768 and 1771, he was a member of the State Council. Razumovsky spent his last years at his estate in Petrovsky-Razumovsky near Moscow, and then in Baturin in Little Russia, where he passed away on January 15, 1803.