Singles
2003 Porsche Tennis Grand Prix
Final
Champion	Kim Clijsters
Runner-up	Justine Henin-Hardenne
Score	5–7, 6–4, 6–2
Events
Singles Doubles
← 2002 · Women's Stuttgart Open · 2004 →

Kim Clijsters was the defending champion, and successfully defended her title by defeating compatriot Justine Henin-Hardenne 5–7, 6–4, 6–2 in the final.

The first four seeds received a bye into the second round.

	Semifinals							Final
	1	Kim Clijsters	77	6
	WC	Mary Pierce	62	0
								1	Kim Clijsters	5	6	6
								2	Justine Henin-Hardenne	7	4	2
		Elena Bovina	2	4
	2	Justine Henin-Hardenne	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	K Clijsters	6	6
		D Hantuchová	6	6					D Hantuchová	1	1
	Q	L Raymond	3	4											1	K Clijsters	6	6
		P Schnyder	7	7											5	A Mauresmo	4	3
	Q	M Casanova	5	5					P Schnyder	2	63
		M Shaughnessy	64	2				5	A Mauresmo	6	77
	5	A Mauresmo	77	6																		1	K Clijsters	77	6
																						WC	M Pierce	62	0
								4	J Capriati	4	2
	WC	M Pierce	6	6				WC	M Pierce	6	6
	Q	C Black	2	0											WC	M Pierce	7	78
		J Dokic	5	0												M Maleeva	5	66
		M Maleeva	7	6					M Maleeva	6	6
		V Zvonareva	6	4	3			7	C Rubin	3	4
	7	C Rubin	1	6	6

	First round							Second round							Quarterfinals							Semifinals
	8	A Myskina	0	6	4
		A Stevenson	6	1	0r			8	A Myskina	2	3
	Q	F Zuluaga	2	4					E Bovina	6	6
		E Bovina	6	6												E Bovina	6	6
	WC	A Pistolesi	2	1											3	L Davenport	3	2
		A Sugiyama	6	6					A Sugiyama	2	4
								3	L Davenport	6	6
																							E Bovina	2	4
	6	E Dementieva	6	6																		2	J Henin-Hardenne	6	6
		N Petrova	3	3				6	E Dementieva	6	2
		S Farina Elia	77	77					S Farina Elia	0	1r
		A Coetzer	64	64											6	E Dementieva	5	0
	WC	AL Grönefeld	65	2											2	J Henin-Hardenne	7	6
		C Martínez	77	6					C Martínez	0	61
								2	J Henin-Hardenne	6	77

• Official Results Archive (ITF) Archived 2016-03-11 at the Wayback Machine
• Official Results Archive (WTA)