Filip Maciejuk (born 3 September 1999 in Puławy) is a Polish cyclist, who currently rides for UCI Continental team Team Bahrain Victorious. On 14 August 2021 Maiejuk signed a two-year-long deal to ride for UCI WorldTeam Team Bahrain Victorious from 2022.
Maciejuk received backlash for causing a 30 rider crash during the 2023 Tour of Flanders. The crash was caused by him swerving into the peloton after having ridden off the road onto a path due to having hit a patch of grass. He was later handed a 30-day ban from racing in July by the UCI