2010 IIHF World Women's U18 Championship

The 2010 IIHF World Women's U18 Championship is the third junior female world ice hockey championships. It was held from March 27 through April 3, 2010, in Chicago, Illinois. The championship is the Under-18 junior ice hockey edition of the women worlds, organized by the International Ice Hockey Federation (IIHF).

Eight teams will play in the top division, and six teams play in Division I.

Teams
The following teams will participate in the championship:


 * 🇨🇦 Canada

Group A
Japan's 3-1 victory over Finland is the first time in IIHF history that any Japanese national team had ever beaten a Finnish national team.

Results
All times local (UTC−5)

Results
All times local (UTC−5)

Relegation Round
The relegation round was played as a best-of-three playoff. The Czech Republic sweep hence rendered the last game unnecessary.

This is the first time any Russian national team has ever been officially relegated since the country began international competition in 1954 as part of the Soviet Union. (The senior Russian women's team finished the 2005 World Championships in a relegation position, but an expansion of the 2007 tournament to nine teams in 2007 granted them a reprieve.)

 is relegated to Division I for the 2011 IIHF World Women's U18 Championship.

Division I
The tournament was held in Piešťany, Slovakia, from April 3 to April 9, 2010.

 is promoted to Top Division for the 2011 IIHF World Women's U18 Championship