One-day races and Classics Marc Sergeant (born 16 August 1959) is a Belgian former professional road bicycle racer.

He competed in the team time trial event at the 1980 Summer Olympics.

[1] After Sergeant stopped his cycling career, he became team manager at Lotto–Soudal.

He left his management role at the end of the 2021 season.

[2] Sergeant finished a total of 6 times in the top 10 of Tour of Flanders.