Filip Dewulf (born 15 March 1972) is a former professional male tennis player from Belgium.

In 1997 he reached the semifinals of the French Open, his best singles result ever and the first Belgian tennis player (male or female) to reach the semi-final at a Grand Slam tournament.

He defeated Cristiano Caratti, Fernando Meligeni, Albert Portas, Àlex Corretja and Magnus Norman before he was defeated in four sets by the eventual champion, Gustavo Kuerten.

[1] Dewulf would also reach the quarter-finals at the same event the following year, falling to eventual runner-up Àlex Corretja in straight sets.

[2] This biographical article relating to Belgian tennis is a stub.