The 2003 Men's Ice Hockey World Championships was the 67th such event sanctioned by the International Ice Hockey Federation (IIHF). The competition also served as qualification for division placements in the 2004 competition. Canada won the gold medal, beating Sweden 3–2 in the final.

Championship

Division I

Group A

Played in Budapest, Hungary (April 15–21).

Group B

Played in Zagreb, Croatia (April 13–20). France and Kazakhstan were promoted to the 2004 Men's World Ice Hockey Championships, while Croatia and Lithuania were demoted to Division II.

Division II

Group A

Played in Seoul, South Korea (April 5–12).

Group B

Played in Sofia, Bulgaria (March 24–30). Belgium and South Korea were promoted to Division I, while Iceland and Mexico were demoted to Division III.

Division III

Played in Auckland, New Zealand (April 3–6). Luxembourg and New Zealand were promoted to Division II.