The 2011 IIHF World U18 Championship Division II was an international under-18 ice hockey competition organised by the International Ice Hockey Federation.

Both Division II tournaments made up the third level of the IIHF World U18 Championships.

Austria and Ukraine won the Group A and B tournaments respectively and gained promotion to the Division I of the 2012 IIHF World U18 Championships.

The Group A tournament was played in Braşov, Romania, from 19 to 25 March 2011.

The Group B tournament was played in Donetsk, Ukraine, from 27 March to 2 April 2011.