The 2010 World Junior Ice Hockey Championship Division III was an international ice hockey tournament organized by the International Ice Hockey Federation, the fourth level of the 2010 World Junior Ice Hockey Championships.

It took place in Istanbul, Turkey, from 4 to 10 January 2010.

[1] The top two teams in the tournament were promoted to Division II for the 2011 IIHF World Junior Championship.

The top two teams in each group advanced to the semi-finals, while the remaining teams played for fifth to seventh place.

The two finalists,  Australia and  Iceland, were promoted to Division II for the 2011 IIHF World U20 Championship.