The 2010 IIHF World Championship was the 74th IIHF World Championship, an annual international ice hockey tournament. It took place between 7 and 23 May 2010 in Germany. The games were played in the Lanxess Arena in Cologne, SAP Arena in Mannheim, and one game at Veltins-Arena in Gelsenkirchen. The Russian team was the defending champion, having won the previous two championships.
The tournament was won by the Czech Republic, who claimed their sixth world championship title by defeating Russia 2–1 in the final. Sweden won against Germany 3–1 for the bronze medal.
The tournament stands as the most watched IIHF championship in history, with an estimated cumulative audience of over 650 million over the course of the tournament and viewers in over 100 countries and dependencies worldwide. It also was a considerable success regarding attendance for the tournament; it ranked as the second most attended ice hockey world championship of all time, narrowly behind the 2004 edition. In total 548,788 people attended, compared with 552,097 in 2004 in the Czech Republic. It since slipped to the fourth place, behind 2014 and 2015 editions.
The host nation of Germany had their best finish at the tournament since it switched to the current 16 nation format, and a player representing Germany (goaltender Dennis Endras) was named MVP for the first time in the history of the championship.