The Battle of Kay, also referred to as the Battle of Sulechów, Battle of Züllichau, or Battle of Paltzig, was an engagement fought on 23 July 1759 during the Seven Years' War. It occurred near Kay (Kije) in the Neumark, now part of Poland.

Carl Heinrich von Wedel was a Prussian lieutenant general in the War of Austrian Succession (1740–1748), the Seven Years' War (1756–1763), and the War of Bavarian Succession (1778–1779). He fought most notably in the Battle of Tornow in 1758, and the Battle of Kay in 1759. He was instrumental in Frederick the Great's victory at Leuthen in December 1757.