Matias Nielsen (born 28 July 1999) is a speedway rider from Denmark.
[1][2][3][4] Nielsen came to prominence in 2019 when he won the silver medal at the Danish Under 21 Individual Speedway Championship.
[5] The following season he repeated the success and also won a silver medal at both the 2020 Team Speedway Junior European Championship and the 2020 Team Speedway Junior World Championship.
[6] In 2022, he won his second European Junior Championship silver medal[7] and rode for Ostrów in Poland and Esbjerg in Denmark.
[8] In 2023, he helped Esbjerg Vikings win the Danish League.