Count Alexei (Alexey) Grigoryevich Orlov-Chesmensky was a Russian soldier, general-in-chief, general admiral and statesman, who rose to prominence during the reign of Catherine the Great. His joint victory with Grigory Spiridov and Samuel Greig in the Battle of Chesma put him in the ranks of the outstanding Russian military commanders of all time; and although he lacked naval experience, he was the only authority in those circumstances who could ensure proper co-ordination of action.

General admiral or Admiral general was first a Dutch then Danish, German, Russian, Portuguese, Spanish and Swedish naval rank. Its historic origin is a title high military or naval dignitaries of early modern Europe sometimes held, for example the (nominal) commander-in-chief of the Dutch Republic's navy.