| Czech Republic | |
| Badge: | Coat of arms of the Czech Republic.svg |
| Badge Size: | 130px |
| Association: | Czech Ice Hockey Association |
| General Manager: |  Otakar Černý |
| Coach: | Radim Rulík |
| Asst Coach: | Jiří Kalous, Marek Židlický |
| Captain: | Stanislav Svozil |
| Most Points: | Václav Varaďa (16) |
| Iihf Code: | CZE |
| First Game: | 6–1 (Vuokatti, Finland; August 29, 1993) |
| Largest Win: | 14–3 (Red Deer, Alberta, Canada; January 10, 2004) |
| Largest Loss: | 10–1 (Regina, Saskatchewan, Canada; December 18, 2009) |
| World Champ2 Name: | IIHF World Junior Championship |
| World Champ2 Apps: | 23 |
| World Champ2 First: | 1994 |
| World Champ2 Best: | (2000, 2001) |
| Record: | 51–49–9 |
The Czech Republic men's national junior ice hockey team is the national under-20 ice hockey team in the Czech Republic. The team represents the Czech Republic at the International Ice Hockey Federation's IIHF World Junior Championship.
| Year | Location | Result | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974–1993 | As part of | ||||||||||||
| 1994 | Czech Republic (Ostrava) | 5th | |||||||||||
| 1995 |  Canada (Red Deer, Stettler, Spruce Grove, Calgary, Ponoka) | 6th | |||||||||||
| 1996 |  United States (Boston) | 4th | |||||||||||
| 1997 | Switzerland (Geneve, Morges) | 4th | |||||||||||
| 1998 |  Finland (Helsinki, Hämeenlinna) | 4th | |||||||||||
| 1999 | Canada (Winnipeg) | 7th | |||||||||||
| 2000 |  Sweden (Umeå, Skellefteå) | bgcolor=gold | Gold medal | ||||||||||
| 2001 |  Russia (Moscow, Podolsk) | bgcolor=gold | Gold medal | ||||||||||
| 2002 | Czech Republic (Pardubice, Hradec Králové) | 7th | |||||||||||
| 2003 | Canada (Halifax, Sydney) | 6th | |||||||||||
| 2004 | Finland (Helsinki, Hämeenlinna) | 4th | |||||||||||
| 2005 | United States (Grand Forks, Thief River Falls) | Bronze medal | |||||||||||
| 2006 | Canada (Vancouver, Kelowna, Kamloops) | 6th | |||||||||||
| 2007 | Sweden (Leksand, Mora) | 5th | |||||||||||
| 2008 | Czech Republic (Pardubice, Liberec) | 5th | |||||||||||
| 2009 | Canada (Ottawa) | 6th | |||||||||||
| 2010 | Canada (Saskatoon, Regina) | 7th | |||||||||||
| 2011 | United States (Buffalo, Niagara) | 7th | |||||||||||
| 2012 | Canada (Calgary, Edmonton) | 5th | |||||||||||
| 2013 | Russia (Ufa) | 5th | |||||||||||
| 2014 | Sweden (Malmö) | 6th | |||||||||||
| 2015 | Canada (Montreal, Toronto) | 6th | |||||||||||
| 2016 | Finland (Helsinki) | 5th | |||||||||||
| 2017 | Canada (Toronto, Montreal) | 6th | |||||||||||
| 2018 | United States (Buffalo) | 4th | |||||||||||
| 2019 | Canada (Vancouver, Victoria) | 7th | |||||||||||
| 2020 | Czech Republic (Ostrava, Třinec) | 7th | |||||||||||
| 2021 | Canada (Edmonton) | 7th | |||||||||||
| 2022 | Canada (Edmonton) | 4th | |||||||||||
| 2023 | Canada (Halifax, Moncton) | Silver medal | |||||||||||
| 2024 | Sweden (Gothenburg) | Bronze medal | |||||||||||