Singles
1999 Open Gaz de France
Final
Champion	Serena Williams
Runner-up	Amélie Mauresmo
Score	6–2, 3–6, 7–6(7–4)
Details
Draw	28
Seeds	8
Events
Singles Doubles
← 1998 · Open Gaz de France · 2000 →

The 1999 Open Gaz de France singles was the singles event of the seventh edition of the Open GDF Suez; a WTA Tier II tournament held in Paris, France. Mary Pierce was the defending champion but did not compete that year.

Serena Williams won in the final 6–2, 3–6, 7–6^(7–4) against Amélie Mauresmo. It was her first career singles title.

The top four seeds received a bye to the second round.

	Semifinals							Final
	6	Amélie Mauresmo	6	77
	3	Dominique Van Roost	0	65
								6	Amélie Mauresmo	2	6	64
									Serena Williams	6	3	77
		Nathalie Dechy	1	4
		Serena Williams	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	M Hingis	6	6
	Q	S Naćuk	6	2	77			Q	S Naćuk	1	1
		S Pitkowski	4	6	64										1	M Hingis	6	1	3
	WC	É Loit	6	4	1										6	A Mauresmo	2	6	6
	Q	K Habšudová	3	6	6			Q	K Habšudová	2	1
	LL	L Andretto	2	5				6	A Mauresmo	6	6
	6	A Mauresmo	6	7																		6	A Mauresmo	6	77
																						3	D Van Roost	0	65
								3	D Van Roost	6	6
		A Sugiyama	1	6	1				V Ruano Pascual	4	0
		V Ruano Pascual	6	3	6										3	D Van Roost	7	6
	LL	S Kleinová	6	2	6										8	E Likhovtseva	5	0
		A Fusai	2	6	0			LL	S Kleinová	4	5
	WC	S Appelmans	64	3				8	E Likhovtseva	6	7
	8	E Likhovtseva	77	6

	First round							Second round							Quarterfinals							Semifinals
	5	S Testud	5	2
		N Dechy	7	6					N Dechy	6	2	6
		E Tatarkova	5	2					I Majoli	2	6	2
		I Majoli	7	6												N Dechy	6	4	6
		A Smashnova	3	3											WC	A Cocheteux	1	6	1
	WC	A Cocheteux	6	6				WC	A Cocheteux	6	6
								4	I Spîrlea	4	2
																							N Dechy	1	4
	7	J Halard-Decugis	6	6																			S Williams	6	6
		M Vento	4	0				7	J Halard-Decugis	6	6
	Q	A-G Sidot	6	4	6			Q	A-G Sidot	1	2
	LL	L Courtois	3	6	2										7	J Halard-Decugis	2	3
	Q	Å Carlsson	1	2												S Williams	6	6
		S Williams	6	6					S Williams	6	6
								2	N Tauziat	1	4

	First round							Second round							Qualifying competition
	1	Miriam Oremans	2	7	4
		Laura Golarsa	6	5	6
									Laura Golarsa	5	5
									Laurence Courtois	7	7
		Laurence Courtois	6	6
		Barbara Schwartz	2	3
																Laurence Courtois	3	2
																Åsa Carlsson	6	6
		Adriana Serra Zanetti	5	3
		Åsa Carlsson	7	6
									Åsa Carlsson	6	64	6
									Denisa Chládková	0	77	4
		Denisa Chládková	6	6
	8	Silvija Talaja	4	3

	First round							Second round							Qualifying competition
	3	Anne-Gaëlle Sidot	6	7
		Eugenia Kulikovskaya	1	5
								3	Anne-Gaëlle Sidot	6	6
									Flora Perfetti	2	3
	WC	Eleni Daniilidou	0	6	5
		Flora Perfetti	6	4	7
															3	Anne-Gaëlle Sidot	6	2	6
																Laurence Andretto	4	6	1
		Olga Lugina	77	2	5
		Laurence Andretto	62	6	7
									Laurence Andretto	6	7
								6	Maureen Drake	1	5
		Marlene Weingärtner	3	3
	6	Maureen Drake	6	6

	First round							Second round							Qualifying competition
	5	Els Callens	0	6
		Petra Begerow	6	77
									Petra Begerow	0	2
									Sandra Kleinová	6	6
		Sandra Kleinová	6	6
		Miriam Schnitzer	3	1
																Sandra Kleinová	3	62
																Sandra Naćuk	6	77
		Sandra Naćuk	6	6
		Anca Barna	3	1
									Sandra Naćuk	77	6
									Julia Abe	63	4
		Julia Abe	6	6
	Alt	Germana Di Natale	2	0

	First round							Second round							Qualifying competition
	7	Larisa Neiland	6	1	0r
		Adriana Gerši	4	6	1
									Adriana Gerši	77	2	4
									Stéphanie Foretz	63	6	6
		Stéphanie Foretz	6	4	6
		Sophie Georges	0	6	4
																Stéphanie Foretz	3	1
															2	Karina Habšudová	6	6
		Antonella Serra Zanetti	3	0
		Sophie Lefèvre	6	6
									Sophie Lefèvre	4	1
								2	Karina Habšudová	6	6
		Lea Ghirardi	1	2
	2	Karina Habšudová	6	6

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