Battle of Vyborg Bay (1790)

Battle of Vyborg Bay
	Part of the Russo-Swedish War (1788–1790)
	; Battle of Vyborg Bay, by Ivan Aivazovsky
Date	3 July (O.S.: 22 June) 1790
Location	Krysserort near Vyborg (Vyborg Bay), Vyborg Governorate, Russia
Result	See § Aftermath
Belligerents
Russian Empire	Kingdom of Sweden
Commanders and leaders
Admiral Vasily Chichagov; Pyotr Khanykov; Illarion Povalishin	Gustav III; Prince Karl, Duke of Södermanland; Rudolf Cederström
Strength
30 ships of the line 6 in battle; ; 12 frigates 8 large frigates in battle; ; 72 rowing craft 20 gunboats in battle; ; 2,718 naval cannons ; 21,000 men; (number of cannon and men does not include rowing craft)	20–22 ships of the line; 10–12 frigates; (in total) 242–350 arch. vessels 13,000–22,000 men; (landing party); 200 in battle 13,000–14,000 men; (landing party); ; ; 3,000 naval cannons ; 30,000–40,000 seamen and soldiers including arch. landing party
Casualties and losses
One estimate:; not a single vessel lost; 117 killed; 164 wounded ; Another estimate:; 6 ships of the line out of action; 1,000 men;	One estimate:; 5 ships of the line; 3 frigates; 6 galleys; 14 gunboats; c. 30 transports; 5,000 men; 2 additional ships of the line lost after the battle ; Other estimates:; 7–9 ships of the line; 3 frigates; 54 smaller vessels; 7,000–8,000 men;

The Battle of Vyborg Bay (or the Battle of Vyborg) was a naval battle fought between Russia and Sweden on 3 July 1790 in Vyborg Bay off the coast of Vyborg during the Russo-Swedish War (1788–1790). The Swedish Navy suffered heavy losses, losing seven ships of the line and three frigates, but Gustav III of Sweden eventually ensured a Swedish naval escape through a Russian naval blockade composed of units of the Baltic Fleet, commanded by Admiral Vasily Chichagov. British historians would later call the Battle of Vyborg Bay the "Baltic Trafalgar". The battle ranks among the world's largest historical naval battles and also among the most influential, as it introduced the naval battle concept of "firepower over mobility".