Battle of Wenden (also known as Battle of Kieś) was a battle fought during the Polish–Swedish War (1626–1629), between Sweden and the Polish–Lithuanian Commonwealth on December 3, 1626 at Wenden (Cēsis, Kiesia) in present-day Latvia. Swedish forces were led by Gustav Horn and Hans Wrangel. Lithuanian forces were led by Aleksander Gosiewski. The Swedes won the battle.