The Battle of Castricum (October 6, 1799) saw a Franco-Batavian force defeat an Anglo-Russian force near Castricum, Netherlands, within the Anglo-Russian invasion of Holland. The battle was fought during the War of the Second Coalition against Revolutionary France between French–Batavian forces under the command of generals Guillaume Brune and Herman Willem Daendels and British–Russian forces under the command of the Duke of York and General Ivan Essen. The Castricum battle and its strategic outcome put an end to any hopes for the invasion's success.
At the Battle of Bergen on 19 September 1799, Brune defeated the Anglo-Russian forces piecemeal.