Battle of Kock – a battle of the September Campaign, fought from October 2 to 6, 1939 between the units of the Polish Independent Operational Group "Polesie" of General Franciszek Kleeberg and the German units of the XIV Motorized Corps of General von Wietersheim. Tactically, the battle was victorious for the Poles, but strategically the Germans won. It was the last battle of the September Campaign fought by regular troops.