The 2025 IIHF World Championship will be co-hosted by Stockholm, Sweden, and Herning, Denmark, from 9 to 25 May 2025.

This decision regarding Sweden was made at the 2018 semi-annual International Ice Hockey Federation (IIHF) congress in Malta, and was officially announced on 24 May 2019, at the IIHF's annual congress during the World Championships in Bratislava, Slovakia.

[2] The seedings in the preliminary round are based on the 2024 IIHF World Ranking, at the end of the 2024 IIHF World Championship, using the serpentine system while allowing the organizers, "to allocate a maximum of two teams to separate groups," while ensuring hosts Sweden and Denmark will be in separate groups.

[4] The mascot of the event is called Beaty, a character with a heart-shaped face and bright cheeks.

Beaty is a lively and agile mascot who bounces around, spreading energy to everyone around it, and always with a high pulse.