Samuel Greig, known in Russia as Samuel Karlovich Greig, was born on November 30, 1735, in Inverkeithing, Fife, Scotland, and died on October 15, 1788, in Tallinn, Estonia, part of the Russian Empire. He was a Russian admiral of Scottish descent, renowned for his role in the Battle of Chesma in 1770 and the Battle of Hogland in 1788. His son, Alexey Greig, also achieved significant success in the Imperial Navy of Russia.

Samuel Greig began his career as a sailor on his father's ships and then joined the Royal Navy as a first lieutenant. He participated in naval battles during the capture of Gore in 1758, the Battle of Quiberon Bay in 1759, and the Battle of Havana in 1762. In 1761, he was promoted to the rank of lieutenant.

The Russian government appealed to Great Britain for experienced British naval officers to strengthen its fleet, and Lieutenant Greig was selected among them. His outstanding abilities quickly drew attention in Russia, and he soon received a promotion. After the Battle of Chesma in the Russo-Turkish War, Captain Greig, who had previously been appointed commodore on a fire ship, was promoted to admiral by Count Orlov, a decision that was immediately confirmed by the Empress of Russia. A memorial plaque has been installed at the house where Samuel Greig was born, which now houses the Half Crown pub.