| 6 | D | | | | | Sortname|Mike|Mathesonconvert|1.88|m|ftin|abbr=onconvert|86|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1994|02|27|df=y
FinlandThe roster was named on 4 May 2025. Head coach: Antti Pennanen
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 2 | D | | | | | Sortname|Mikko|Lehtonen|dab=ice hockey, born 1994convert|1.83|m|ftin|abbr=onconvert|89|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1994|1|16|df=y
FranceThe roster was announced on 6 May 2025. Head coach: Yorick Treille
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 3 | F | | | | | Sortname|Enzo|Guebeyconvert|1.83|m|ftin|abbr=onconvert|89|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1999|5|6|df=y
LatviaThe roster was announced on 6 May 2025. Head coach: Harijs Vītoliņš
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 6 | D | | | | | Sortname|Dans|Ločmelisconvert|1.85|m|ftin|abbr=onconvert|81|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|2004|1|21|df=y
SlovakiaThe roster was announced on 7 May 2025. Head coach: Vladimír Országh
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 4 | D | | | | | Sortname|Dávid|Romaňákconvert|1.90|m|ftin|abbr=onconvert|95|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1999|8|12|df=y
SloveniaThe roster was announced on 6 May 2025. Head coach: Edo Terglav
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 4 | D | | | | | Sortname|Miha|Štebihconvert|1.90|m|ftin|abbr=onconvert|92|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1992|4|7|df=y
SwedenThe roster was announced on 2 May 2025. Head coach: Sam Hallam
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 4 | D | – C | | | | Sortname|Adam|Larssonconvert|1.90|m|ftin|abbr=onconvert|95|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1992|11|12|df=y
Group BCzechiaA 24-player roster was announced on 4 May 2025. Head coach: Radim Rulík
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 7 | D | | | | | Sortname|Ondřej|Beránekconvert|1.84|m|ftin|abbr=onconvert|90|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1995|12|21|df=y
DenmarkThe roster was announced on 7 May 2025. Head coach: Mikael Gath
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 11 | F | | | | | Sortname|Oscar|Fisker Mølgaardconvert|1.83|m|ftin|abbr=onconvert|76|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|2005|2|18|df=y
GermanyA 26-player roster was announced on 30 April 2025. Head coach: Harold Kreis
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 7 | F | | | | | Sortname|Korbinian|Geibelconvert|1.84|m|ftin|abbr=onconvert|91|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|2002|7|8|df=y
HungaryThe roster was announced on 7 May 2025. Head coach: Gergely Majoross
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 1 | G | | | | | Sortname|Domán|Szongothconvert|1.84|m|ftin|abbr=onconvert|83|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|2008|6|8|df=y
KazakhstanThe roster was announced on 6 May 2025. Head coach: Oleg Bolyakin
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 1 | G | | | | | Sortname|Leonid|Metalnikovconvert|1.82|m|ftin|abbr=onconvert|85|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1990|4|25|df=y
NorwayThe roster was announced on 7 May 2025. Head coach: Tobias Johansson
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 2 | D | | | | | Sortname|Johannes|Johannesenconvert|1.81|m|ftin|abbr=onconvert|85|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1997|3|1|df=y
SwitzerlandThe roster was announced on 5 May 2025. Following Nico Hischier's exit from the tournament, Andrea Glauser was named captain. Head coach: Patrick Fischer
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 8 | F | Simon Knak | | | | convert|1.83|m|ftin|abbr=onconvert|85|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|1997|2|26|df=y A 22-player roster was announced on 30 April 2025. Head coach: Ryan Warsofsky
| No. | Pos. | Name | Height | Weight | Birthdate | Team | | 1 | G | | | | | Sortname|Jackson|LaCombeconvert|1.88|m|ftin|abbr=onconvert|93|kg|lb|abbr=on|sortable=onbirth date and age2|2025|5|9|2001|1|9|df=y
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