Von Martens is a surname. Notable people with the surname include:
Eduard von Martens (1831–1904), German zoologist, son of Georg Matthias von Martens Friedrich Fromhold von Martens (1845–1909), Russian diplomat and jurist Georg Friedrich von Martens (1756–1821), German jurist and diplomat Georg Matthias von Martens (1788–1872), German lawyer, botanist and phycologist, father of Eduard Luise von Martens (1828–1894), German painter and draughtswoman Valerie von Martens (1894–1986), German-Austrian actress born Valérie Pajér Edle von Mayersperg
See also Martens (surname)