Anastasia Myskina defeated Amélie Mauresmo in the final, 6–2, 6–4 to win the women's singles tennis title at the 2003 Kremlin Cup.^[1]

Magdalena Maleeva was the defending champion, but lost to Dinara Safina in the first round.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.

	Semifinals							Final
		Anna Pistolesi	3	0
	4	Anastasia Myskina	6	6
								4	Anastasia Myskina	6	6
								2	Amélie Mauresmo	2	4
	3	Elena Dementieva	4	1
	2	Amélie Mauresmo	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	J Capriati	6	4	63
		E Bovina	6	6					E Bovina	4	6	77
		P Schnyder	4	2												E Bovina	4	4
		S Kuznetsova	6	6												A Pistolesi	6	6
	Q	M Weingärtner	2	4					S Kuznetsova	65	0
		A Pistolesi	6	6					A Pistolesi	77	6
	6	N Petrova	3	3																			A Pistolesi	2	0
																						4	A Myskina	6	6
								4	A Myskina	6	6
		M Serna	2	6	6				M Serna	3	1
		S Farina Elia	6	3	2										4	A Myskina	6	6
	Q	T Pisnik	6	6												E Daniilidou	3	0
		E Likhovtseva	4	3				Q	T Pisnik	3	6	4
		E Daniilidou	7	6					E Daniilidou	6	3	6
	8	M Shaughnessy	5	3

	First round							Second round							Quarterfinals							Semifinals
	5	M Maleeva	4	6	5
	WC	D Safina	6	3	7			WC	D Safina	5	63
		F Schiavone	2	6	6				F Schiavone	7	77
		L Krasnoroutskaya	6	0	4											F Schiavone	1	1r
	Q	T Perebiynis	2	2											3	E Dementieva	6	2
	Q	J Kostanić	6	6				Q	J Kostanić	2	3
								3	E Dementieva	6	6
																						3	E Dementieva	4	1
	7	V Zvonareva	4	6	6																	2	A Mauresmo	6	6
		A Coetzer	6	1	2			7	V Zvonareva	6	6
		L Raymond	2	64				WC	V Dushevina	2	1
	WC	V Dushevina	6	77											7	V Zvonareva	4	6	2
	Q	J Dokić	3	1											2	A Mauresmo	6	3	6
		A Stevenson	6	6					A Stevenson	6	4	3
								2	A Mauresmo	3	6	6

	First round							Second round							Qualifying competition
	1	Alicia Molik	6	6
		Sonya Jeyaseelan	4	1				1	Alicia Molik	4	64
	Gulnara Fattakhetdinova		2	2					Yuliya Beygelzimer	6	77
	Yuliya Beygelzimer		6	6												Yuliya Beygelzimer	3	1
	Alt	Ekaterina Bychkova	77	4	0										8	Marlene Weingärtner	6	6
		Maria Goloviznina	64	6	6				Maria Goloviznina	6	4	5
		Galina Voskoboeva	64	3				8	Marlene Weingärtner	4	6	7
	8	Marlene Weingärtner	77	6

	First round							Second round							Qualifying competition
	2	Fabiola Zuluaga	6	6
		Yuliana Fedak	2	2				2	Fabiola Zuluaga	6	6
	WC	Elena Vesnina	1	5					Michaela Paštiková	2	2
		Michaela Paštiková	6	7											2	Fabiola Zuluaga	6	3	2
	WC	Galina Fokina	6	65	2										9	Tatiana Perebiynis	3	6	6
		Renata Voráčová	2	77	6				Renata Voráčová	3	4
		Tatiana Poutchek	3r					9	Tatiana Perebiynis	6	6
	9	Tatiana Perebiynis	4

	First round							Second round							Qualifying competition
	3	Maja Matevžič	3	6	3
		Iveta Benešová	6	2	6			Iveta Benešová		5	3
		Anastasia Rodionova	6	6				Anastasia Rodionova		7	6
	Alt	Julia Vorobieva	3	2												Anastasia Rodionova	6	4	3
		Nina Bratchikova	6	6											10	Jelena Kostanić	4	6	6
	Alt	Svetla Bozicnik	1	0					Nina Bratchikova	3	1
		Evgenia Kulikovskaya	5	5				10	Jelena Kostanić	6	6
	10	Jelena Kostanić	7	7

	First round							Second round							Qualifying competition
	4	Tina Pisnik	5	6	6
		Vanessa Henke	7	3	1			4	Tina Pisnik	5	6	6
		Janette Husárová	2	6	3			WC	Anna Chakvetadze	7	1	3
	WC	Anna Chakvetadze	6	3	6										4	Tina Pisnik	6	4	7
	WC	Anna Bastrikova	5	2												Eva Birnerová	2	6	5
		Eva Birnerová	7	6					Eva Birnerová	7	6
		Nadejda Ostrovskaya	6	3	3			7	Klára Koukalová	5	4
	7	Klára Koukalová	4	6	6

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