The 2017 IIHF World Championship, the 2017 edition of the annual Ice Hockey World Championships, was held from 5 to 21 May 2017 in Cologne, Germany and Paris, France. The official tournament mascots were Asterix and Obelix, the main characters from popular French comic book series The Adventures of Asterix. The logo incorporates the silhouette of deceased German national team goaltender Robert Müller, who succumbed to a brain tumor at just 28 years of age. German tennis player Angelique Kerber, 1. FC Köln and German Olympic soccer team goalkeeper Timo Horn and Paris Saint-Germain F.C.'s Brazilian winger Lucas Moura were named celebrity ambassadors for the event.

Robert Müller was a German professional ice hockey goaltender. He played in the Deutsche Eishockey Liga from 1998 to 2009.