The Battle of Cassel, sometimes called the Battle of Peene, took place on 11 April, 1677, during the Franco-Dutch War, near Cassel, in modern France. A French army under the overall command of the duc de Luxembourg defeated a combined Dutch-Spanish force led by William of Orange.
Although Cassel ensured the capture of key strongpoints in modern French Flanders, the French failed to force the Dutch out of the war, which continued until the August 1678 Treaties of Nijmegen.