Dirk Langendijk (Rotterdam, 8 March 1748 – Rotterdam, 15 December 1805), written as Langendyk in his day, was a Dutch draughtsman, painter and etcher. He produced mainly depictions of land and sea battles and other military scenes from the Dutch "Patriottentijd" (circa 1780–1800) and the French Revolutionary and Napoleonic Wars (from 1792).