The Czech Republic men's national junior ice hockey team is the national under-20 ice hockey team in the Czech Republic. Since 2021, the team has been officially known in English as Czechia. The team represents the Czech Republic at the International Ice Hockey Federation's IIHF World Junior Championship. The team has won medals in 2000, 2001, 2005, 2023, 2024, and 2025.

The Czech Republic U20 ice hockey team, known as the Czech Rep U20, is the national junior team representing the Czech Republic in international ice hockey competitions. Comprising the country's most talented young players under the age of 20, the team serves as a vital development platform for future stars of Czech hockey. They compete annually in the IIHF World Junior Championship, where they are recognized for their skilled, disciplined, and competitive style of play. The team has a rich history of success, including multiple top-three finishes in the tournament, and is renowned for producing NHL-caliber talent. With a strong tradition rooted in technical skill, strategic gameplay, and passionate national pride, the Czech Rep U20 continues to be a formidable force in international junior hockey.