Jørgen Balthazar Winterfeldt (1 October 1732 - 22 July 1821) was a Danish naval officer and philanthropist. He was admiral from 1804 and was awarded the Order of the Elephant in 1811. He established Winterfeldts Stiftelse at Klerkegade 25 in Copenhagen in 1805. He was chief of the in from 1782 until 1792.