The 2021 Team Speedway Junior World Championship was the 17th FIM Team Under-21 World Championship season.
The final took place on 10 September 2021, at the Polonia Bydgoszcz Stadium in Bydgoszcz, Poland.
[1] The hosts Poland won their 14th Team Under-21 World Championship and eighth in succession.
[2] A new format was in place for 2021 with 7 teams; Poland, Denmark, Great Britain, Latvia, Sweden, Australia and the Czech Republic competing, with Germany listed as a standby team.
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