Dorothea Douglass defeated Ethel Thomson 4–6, 6–4, 6–2 in the all comers' final to win the ladies' singles tennis title at the 1903 Wimbledon Championships. The reigning champion Muriel Robb did not defend her title.^[1][2]

	Semifinals							Final
	Toupie Lowther		4	2
	Dorothea Douglass		6	6
								Dorothea Douglass		4	6	6
								Ethel Thomson		6	4	2
	Ethel Thomson		6	6
	Alice Greene		3	1

	First round							Second round							Quarterfinals							Semifinals
								Toupie Lowther		8	6
								Winifred Longhurst		6	3
															T Lowther		6	6
	E Walter														A Morton		1	0
	Bertha Steedman		w/o					E Walter		2	2
	Agnes Morton		6	6				A Morton		6	6
	CHE Meyer		1	3																		T Lowther		4	2
	Hilda Lane		6	8																		D Douglass		6	6
	Ellen Mary Stawell-Brown		2	6				H Lane		6	1	7
	Gertrude Houselander		6	6				G Houselander		1	6	9
	M Stoneham		1	1											G Houselander		2	0
	Violet Pinckney		0												D Douglass		6	6
	A Bell		0r					V Pinckney		w/o
	Dorothea Douglass							D Douglass
	Mrs Riseley		w/o

	First round							Second round							Quarterfinals							Semifinals
	Constance Wilson		1	6	6
	Edith Greville		6	2	2			C Wilson		6	6
	L Ripley							L Ripley		2	1
	Mrs M Chatterton		w/o												C Wilson		4	6
	EL Bosworth		6	6											E Thomson		6	8
	Henrietta Horncastle		1	1				EL Bosworth		4	1
	Ethel Thomson		6	6				E Thomson		6	6
	Beryl Tulloch		3	2																		E Thomson		6	6
	H Smythe																					A Greene		3	1
	CB Bell		w/o					H Smythe		0	2
	Edith Bromfield		6	6				E Bromfield		6	6
	EA Longhurst		3	3											E Bromfield		0	6	3
															A Greene		6	4	6
								Alice Greene		6	6
								Mrs Newton		1	2

• Source for the draw at Wimbledon.com