1888 U.S. National Championships – Women's singles

Bertha Townsend defeated Marion Wright 6–2, 6–2 in the All Comers' Final of the 1888 U.S. Women's National Singles tennis championship. Bertha Townsend defeated reigning champion Ellen Hansell 6–3, 6–5 in the Challenge Round. The event was held at the Philadelphia Cricket Club, Pennsylvania.

Women's singles
1888 U.S. National Championships
Champion	Bertha Townsend
Runner-up	Ellen Hansell
Score	6–3, 6–5

Main article: 1888 U.S. National Championships

Draw

Challenge round

	Challenge Round
	Bertha Townsend		6	6
	Ellen Hansell		3	5

All Comers' finals

	First round							Quarterfinals							Semi-finals							Final
	Bertha Townsend		6	6
	Helen Day Harris		4	0				Bertha Townsend
								bye
															Bertha Townsend		1	6	6
	Adeline Robinson		6	6											Adeline Robinson		6	5	3
	Augusta Roberts		3	4				Adeline Robinson		6	3	6
	Ellie Roosevelt		6	6				Ellen Roosevelt		4	6	3
	Sybil Johnson		3	0																		Bertha Townsend		6	6
																						Marion Wright		2	2
															bye
															Marion Wright
								Violet Ward		0	5
	Marion Wright		6	6				Marion Wright		6	6
	Grace Roosevelt		2	3