Back Campionat del Món d'hoquei sobre gel masculí (primera divisió) Catalan Mistrovství světa v ledním hokeji – divize I Czech Jääkiekon 1. divisioonan maailmanmestaruuskilpailut Finnish IIHF divízió I-es jégkorong-világbajnokság Hungarian Campionato mondiale di hockey su ghiaccio - Prima Divisione Italian Pasaules čempionāta hokejā 1. divīzija Latvian/Lettish VM i ishockey for menn (1. divisjon) NB Первый дивизион чемпионата мира по хоккею с шайбой Russian Majstrovstvá sveta v ľadovom hokeji – I. divízia Slovak Светско првенство у хокеју на леду — Дивизија I Serbian
Upcoming season or competition: 2025 IIHF World Championship Division I | |
| Sport | Ice hockey |
|---|---|
| Founded | 1951 (Pool B) 2001 (Division I) |
| No. of teams | 12 |
| Most recent champion(s) |  Hungary (Group A) Ukraine (Group B) |
| Most titles |  Slovenia (Group A) (8) |
| Promotion to | Top-League |
| Relegation to | Division II |
| Official website | IIHF.com |
The IIHF World Championship Division I is an annual sports event organized by the International Ice Hockey Federation. The divisional championship is played in two groups.