Kristof Vliegen
- Date of birth: June 22, 1982
- Birthplace: Maaseik, Belgium
- Residence: Maaseik, Belgium
- Height: 6'4'' (1.93 m)
- Weight: 159 lbs (72 kg)
- Plays: Right-handed
Kristof Vliegen turned professional in 2001, he was a semi-finalist in Chennai in 2006 and in May of the same year, he reached the final of the ATP tournament in Munich, setting up the first ever all-Belgian men's singles final against Olivier Rochus.
