- Source: 2011 IIHF World Championship Division I
- 2011 IIHF World Championship Division I
- IIHF World Championship Division I
- IIHF World U20 Championship Division I
- 2011 IIHF World Championship
- 2011 IIHF World U18 Championship Division I
- 2011 IIHF Women's World Championship Division I
- Ice Hockey World Championships
- IIHF World Championship Division II
- 2012 IIHF World Championship
- 2011 IIHF World U18 Championships
The 2011 IIHF World Championship Division I was an international ice hockey tournament run by the International Ice Hockey Federation. Group A was contested in Budapest, Hungary, and Group B was contested in Kyiv, Ukraine, with both tournaments running from 17 to 23 April 2011.
Participants
= Group A
=Japan withdrew due to many players and players' families being affected by the 2011 Tōhoku earthquake and tsunami. The IIHF decided that the 5th team in Group A would be relegated and Japan would retain their Division I place for the 2012 championship.
= Group B
=Group A tournament
= Standings
== Fixtures
=All times local.
= Scoring leaders
=List shows the top skaters sorted by points, then goals.
GP = Games played; G = Goals; A = Assists; Pts = Points; +/− = Plus/minus; PIM = Penalties in minutes; POS = PositionSource: IIHF.com
= Leading goaltenders
=Only the top five goaltenders, based on save percentage, who have played 40% of their team's minutes are included in this list.
TOI = Time on ice (minutes:seconds); SA = Shots against; GA = Goals against; GAA = Goals against average; Sv% = Save percentage; SO = ShutoutsSource: IIHF.com
= Tournament awards
=Best players selected by the directorate
Best Goaltender: Eum Hyun-Seung (KOR)
Best Forward: István Sofron (HUN)
Best Defenseman: Armin Helfer (ITA)
Group B tournament
= Standings
== Fixtures
=All times local.
= Scoring leaders
=List shows the top skaters sorted by points, then goals.
GP = Games played; G = Goals; A = Assists; Pts = Points; +/− = Plus/minus; PIM = Penalties in minutes; POS = PositionSource: IIHF.com
= Leading goaltenders
=Only the top five goaltenders, based on save percentage, who have played 40% of their team's minutes are included in this list.
TOI = Time on ice (minutes:seconds); SA = Shots against; GA = Goals against; GAA = Goals against average; Sv% = Save percentage; SO = ShutoutsSource: IIHF.com
= Tournament awards
=Best players selected by the directorate
Best Goaltender: Stephen Murphy (GBR)
Best Forward: Olexander Materukhin (UKR)
Best Defenseman: Roman Savchenko (KAZ)