The 2021 Individual Speedway Under 21 World Championship was the 45th edition of the FIM Individual Under-21 World Championship.

It was staged over three rounds, at Stralsund, Krosno and Pardubice.

[1][2][3] Pole Jakub Miśkowiak won the title after winning two of the three rounds.

[4] It was the last time that the event was known as the Under 21, with a rebranding to SGP2 taking place in 2022.

[5][6][7]