Joris Carolus (ca 1566 – ca 1636) was a Dutch cartographer and explorer. He traveled widely, including to the Dutch East Indies, but was particularly experienced in travels in the North Atlantic. He was an officer on several trips to Greenland, Iceland and Spitsbergen. Carolus lost a leg in a battle when he was young and was called Wooden Leg by a contemporary in Iceland. As an explorer and cartographer, he does not rank very high by comparison to his fellows, but his influence on Icelandic cartography was enormous. In short, we can say that he was at least the co-author of the image of Iceland that would have the longest-lasting effect of any outline to date before 1850.