The 2009 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 competition of the 2009 IIHF World U18 Championships.

South Korea and Great Britain won the Group A and B tournaments respectively and gained promotion to Division I of the 2010 IIHF World U18 Championships.

The Group A tournament was played in Maribor, Slovenia at Tabor Ice Hall from 22 to 28 March 2009.

The Group B tournament was played in Narva, Estonia at Kreenholm Ice Hall from 16 to 22 March 2009.