2021 IIHF World U18 Championships

The 2021 IIHF World U18 Championship was the 22nd such event hosted by the International Ice Hockey Federation. Teams would have participated at several levels of competition. The competition also would have served as qualifications for the 2022 competition. All tournaments other than the top division tournament were cancelled by the IIHF on November 18, 2020, due to the COVID-19 pandemic. The United States finished without a medal for the first time since 2003.

Top Division
The tournament was held from April 26 to May 6, 2021, in Frisco and Plano, United States.

Officials
The following officials were assigned by the International Ice Hockey Federation to officiate the 2021 World U18 Championships.

Referees
 * 🇨🇿 Adam Kika
 * 🇫🇮 Riku Brander
 * 🇩🇪 Lukas Kohlmüller
 * 🇷🇺 Sergey Yudakov
 * 🇸🇪 Christoffer Holm
 * Micha Hebeisen
 * 🇺🇸 Sean Fernandez
 * 🇺🇸 Sean MacFarlane
 * 🇺🇸 Jacob Rekucki
 * 🇺🇸 Stephen Reneau
 * 🇺🇸 Peter Schlittenhardt
 * 🇺🇸 Andrew Wilk

Linesmen
 * 🇧🇾 Nikita Polyakov
 * 🇨🇿 David Klouček
 * 🇫🇮 Tommi Niittylä
 * Dāvis Zunde
 * 🇷🇺 Roman Slavikovskii
 * 🇺🇸 Kevin Briganti
 * 🇺🇸 Nick Briganti
 * 🇺🇸 Jake Davis
 * 🇺🇸 William Hancock
 * 🇺🇸 Patrick Richardson

Preliminary round
All times are local (UTC–5).

Playoff round
Winning teams were reseeded for the semifinals in accordance with the following ranking:


 * 1) higher position in the group
 * 2) higher number of points
 * 3) better goal difference
 * 4) higher number of goals scored for
 * 5) better seeding coming into the tournament (final placement at the 2019 IIHF World U18 Championships).

Scoring leaders
GP = Games played; G = Goals; A = Assists; Pts = Points; +/− = Plus–minus; PIM = Penalties In Minutes Source: IIHF

Goaltending leaders
(minimum 40% team's total ice time)

TOI = Time on ice (minutes:seconds); GA = Goals against; GAA = Goals against average; SA = Shots against; Sv% = Save percentage; SO = Shutouts Source: IIHF

Awards
Source: IIHF
 * Best players selected by the Directorate:
 * Best Goaltender: 🇨🇦 Benjamin Gaudreau
 * Best Defenceman: 🇫🇮 Aleksi Heimosalmi
 * Best Forward: 🇷🇺 Matvei Michkov

Source: IIHF
 * Media All-Stars:
 * MVP: 🇷🇺 Matvei Michkov
 * Goaltender: 🇷🇺 Sergei Ivanov
 * Defencemen: 🇫🇮 Aleksi Heimosalmi / 🇨🇦 Brandt Clarke
 * Forwards: 🇨🇦 Connor Bedard / 🇷🇺 Matvei Michkov / 🇫🇮 Samu Tuomaala

Division I
All lower division tournaments were cancelled by the IIHF.

Group A
The tournament was to be held in Spišská Nová Ves, Slovakia, from April 5 to 11, 2021.

Group B
The tournament was to be held in Asiago, Italy, from April 18 to 25, 2021.

Group A
The tournament was to be held in Tallinn, Estonia, from April 4 to 10, 2021.

Group B
The tournament was to be held in Sofia, Bulgaria, from March 21 to 27, 2021,

Group A
The tournament was to be held in Istanbul, Turkey, from March 29 to April 4, 2021.

Group B
The tournament was to be held in Kockelscheuer, Luxembourg, from March 28 to April 3, 2021.