Dirk Langendijk (previously written as Dirk Langendyk; Rotterdam, 8 March 1748 – Rotterdam, 15 December 1805), 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).