Battle of Svensksund (1789)

First battle of Svensksund / Rochensalm
	Part of the Russo-Swedish War (1788–1790)
	; Battle of Svensksund 24 August 1789 ; by Johan Tietrich Schoultz
Date	24 August (15 August OS) 1789
Location	Svensksund, (now Kotka, southern Finland)
Result	Russian victory
Belligerents
Swedish Navy	Imperial Russian Navy
Commanders and leaders
Carl August Ehrensvärd; Carl Olof Cronstedt; Enrique MacDonell	Charles Henry of Nassau-Siegen; Ivan Balle; Count Giulio Litta
Strength
12 archipelago frigates; 5 galleys; 20 gun sloops; 4 cannon longboats; 4 mortar longboats; auxiliaries; 5,000 men	24 larger ships; 3 bomb vessels; 47 galleys; 30 gun sloops; 3 cutters; auxiliaries; 12,000 men
Casualties and losses
Battle: 5 archipelago frigates; 2 galleys; 10 gun sloops; 1,500 men; 30 auxiliaries vessels torched after battle	1 galley; 1 gun sloop; 383 killed; 628 wounded; 22 captured;

The First Battle of Svensksund, also known as the First Battle of Rochensalm from the Russian version of the Finnish: Ruotsinsalmi, was a naval battle fought in the Gulf of Finland in the Baltic Sea outside the present-day city of Kotka on 24 August 1789 during the Russo-Swedish War (1788–1790).