The event, held 3-19 May in Stockholm, Sweden, achieved an all-time high cumulative television audience of 975.15 million by agreements with 70 broadcasters.
They aired in a total of 118 countries and territories worldwide and over 4,500 hours of footage.
René Fasel, President of the IIHF, said: “Today, our annual flagship tournament has a unique standing in the global world of winter sports – as a thrilling sports event for spectators as well as a strong platform for our sponsors and media partners.
“The numerous enhancements we have introduced together with Infront across all ends – from TV production to marketing opportunities – allow us to remain at the forefront with the IIHF Ice Hockey World Championship and bring our sport to the people – anytime and anywhere.”
Along with the growing TV coverage, this year also saw a substantial growth in online audiences through the official IIHF YouTube channel.
Figures more than doubled from 1.6 million total views in 2012 to 3.4 million in 2013.
Infront Sports & Media are the agency working on behalf of the IIHF who represent the federation in broadcast negotiations.
Bruno Marty, Infront’s Executive Director Winter Sports, said: “Marking a new audience record for the fifth time in a row, implies unparalleled levels of visibility for the tournament as well as its Official Sponsors.
“Strikingly, the online and TV audience have soared simultaneously, which reflects the potential of this combined approach and is a strong indicator of the sport’s on-going rise on a global level.”