Jakub Kornfeil (born 8 April 1993) is a Grand Prix motorcycle racer from the Czech Republic.

[1][2] Born in Kyjov, Kornfeil started racing competitively in supermoto from the age of eight years, winning the 65 cc championship in 2002.

After securing the Red Bull Rookies Cup, Kornfeil stepped up to Grand Prix level, making five appearances in the class towards the end of the season with the Loncin team, replacing Alexis Masbou.

[7] Although Koyama outscored his much less experienced team-mate, Kornfeil amassed 28 points from nine points-scoring finishes to end up 17th in the final championship standings.

In Czech Republic, 2018 he added a pole position and podium finish, and in France of the same year he was known for his stunt jump after Enea Bastianini crashed.