The Battle of Kollum was a military engagement that took place on 16 July 1581 during the Eighty Years' War and the Anglo–Spanish War. The battle was fought between an English and Dutch force under John Norreys and Diederik Sonoy respectively, and a Spanish force under George van Lalaing, the Count of Rennenberg. The Dutch and English were victorious, and as a result of the defeat Rennenberg, already ill, died two days later. Rennenberg's successor Francisco Verdugo soon attacked again at Noordhorn; this time Norreys was defeated in the pitched battle.