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

In his career, he won two ATP Tour singles titles and one title in doubles. 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. This was, according to Roland Garros itself, the best performance that a qualifier has performed at a French Open, and only the third time in Grand Slam history that a qualifier had reached a semi-final.^[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. His career-high singles ranking was world No. 39, achieved in September 1997; he became the first Belgian in ATP Top 50, overall finishing four seasons as the top-ranked Belgian player.^[2]

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Oct 1995	Vienna, Austria	World Series	Carpet	Thomas Muster	7–5, 6–2, 1–6, 7–5
Win	2–0	Jul 1997	Kitzbühel, Austria	World Series	Clay	Julian Alonso	7–6(7–2), 6–4, 6–1

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Aug 1993	Umag, Croatia	World Series	Clay	Tom Vanhoudt	Jordi Arrese Francisco Roig	6–4, 7–5

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0-1	Aug 1992	Geneva, Switzerland	Challenger	Clay	Sergio Cortés	7–6, 2–6, 4–6
Loss	0-2	May 1994	Jerusalem, Israel	Challenger	Hard	Arne Thoms	6–4, 1–6, 4–6
Loss	0-3	Jun 1994	Tashkent, Uzbekistan	Challenger	Clay	Chuck Adams	4–6, 6–4, 6–7
Win	1-3	Jan 2000	France F1, Grasse	Futures	Clay	Nicolas Coutelot	6–2, 6–2
Loss	1-4	May 2000	Edinburgh, United Kingdom	Challenger	Clay	Marcelo Charpentier	walkover
Loss	1-5	Jun 2000	Weiden, Germany	Challenger	Clay	Daniel Elsner	1–6, 6–7(5–7>

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Jul 1992	Oberstaufen, Germany	Challenger	Clay	Tom Vanhoudt	Johan Anderson Lars-Anders Wahlgren	6–2, 6–7, 4–6
Win	1–1	Aug 1992	Geneva, Switzerland	Challenger	Clay	Tom Vanhoudt	Alfonso Gonzalez-Mora Marcelo Rebolledo	6–3, 6–2
Win	2–1	Sep 1992	Casablanca, Morocco	Challenger	Clay	Tom Vanhoudt	Karol Kučera Andrey Merinov	7–5, 6–3
Loss	2–2	Nov 1992	Bandar Seri Begawan, Brunei	Challenger	Hard	Tom Vanhoudt	Owen Casey Donald Johnson	2–6, 3–6
Win	3–2	Feb 1993	Lippstadt, Germany	Challenger	Carpet	Martin Laurendeau	David Engel Peter Nyborg	7–6, 4–6, 7–6
Loss	3–3	Mar 1993	Garmisch, Germany	Challenger	Carpet	Tom Vanhoudt	Mike Bauer Alexander Mronz	6–7, 6–3, 2–6
Win	4–3	Aug 1993	Graz, Austria	Challenger	Clay	Tom Vanhoudt	Jordi Arrese Francisco Roig	6–7, 6–2, 6–3
Win	5–3	Sep 1993	Budapest, Hungary	Challenger	Clay	Tom Vanhoudt	Stefano Pescosolido Massimo Valeri	7–5, 6–3
Loss	5–4	May 1994	Jerusalem, Israel	Challenger	Hard	Dick Norman	Ellis Ferreira Kevin Ullyett	6–7, 3–6
Win	6–4	Jul 1995	Prague, Czech Republic	Challenger	Clay	Vojtěch Flégl	Petr Pála David Škoch	6–7, 7–5, 6–2

• Filip Dewulf at the Association of Tennis Professionals
• Filip Dewulf at the International Tennis Federation
• Filip Dewulf at the Davis Cup