The 2006 IIHF World U18 Championship Division III was an international under-18 ice hockey tournament run by the International Ice Hockey Federation. The Division III tournament made up the fourth level of competition at the 2006 IIHF World U18 Championships and took place between 13 and 19 March 2006 in Miercurea Ciuc, Romania. The tournament was won by Romania who upon winning gained promotion, along with Israel who finished in second place, to Division II of the 2007 IIHF World U18 Championships.