Margaret Court defeated Evonne Goolagong in the final, 6–4, 7–5 to win the women's singles tennis title at the 1973 Australian Open. It was her eleventh Australian Open singles title and 22nd major singles title overall. Court did not lose a set during the tournament.

Virginia Wade was the defending champion, but she lost to Kazuko Sawamatsu in the quarterfinals.

The seeded players are listed below. Margaret Court is the champion; others show the round in which they were eliminated.

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• r = Retired

	Quarterfinals							Semifinals							Finals
	1	Margaret Court	6	6
	8	Karen Krantzcke	4	3
								1	Margaret Court	6	6
								4	Kerry Melville	1	0
		Dianne Fromholtz	1	3
	4	Kerry Melville	6	6
															1	Margaret Court	6	7
															2	Evonne Goolagong	4	5
	3	Virginia Wade	6	1	4
	6	Kazuko Sawamatsu	0	6	6
								6	Kazuko Sawamatsu	4	3
								2	Evonne Goolagong	6	6
	7	Kerry Harris	4	3
	2	Evonne Goolagong	6	6

	First round							Second round							Third round							Quarterfinals
								1	M Court	6	6
		N Fuchs	5	6	6				N Fuchs	0	0
		L Mansfield	7	2	1										1	M Court	6	6
		B Dart	6	6												B Dart	0	0
		K Walker	4	3					B Dart	2	6	6
									K Hogarth	6	3	2
																						1	M Court	6	6
																						8	K Krantzcke	4	3
								9	E Birioukova	6	6
	Q	H Worland	6	7				Q	H Worland	0	1
		D James	2	5											9	E Birioukova	1	5
		Lee D-h	6	7											8	K Krantzcke	6	7
		P Whytcross	4	5					Lee D-h	3	5
								8	K Krantzcke	6	7

	First round							Second round							Third round							Quarterfinals
								5	P Coleman	2	1
		D Fromholtz	6	6					D Fromholtz	6	6
	LL	H Young	1	2												D Fromholtz	6	6
		W Turnbull	6	5	6											W Turnbull	3	2
	LL	K Williams	0	7	3				W Turnbull
								12	J Young	w/o
																							D Fromholtz	1	3
																						4	K Melville	6	6
									G Coles	6	6
		M Whitely	6	6					M Whitely	2	1
		Lee S-o	4	4												G Coles	1	2
		C Doerner	6	6											4	K Melville	6	6
		L Walker	2	1					C Doerner	4	2
								4	K Melville	6	6

	First round							Second round							Third round							Quarterfinals
								3	V Wade	6	6
		C Matison	7	6					C Matison	0	0
		K Wilkinson	5	1											3	V Wade	6	6
	LL	M Proisy	6	6												L Bowrey	1	1
		D Ekner	4	4				LL	M Proisy	1	2
									L Bowrey	6	6
																						3	V Wade	0	6	6
																						6	K Sawamatsu	6	1	4
								11	M Tesch	6	7
		M Pratt	7	2	6				M Pratt	2	6
		J Walker	6	6	4										11	M Tesch	3	2
		L Blachford	7	6											6	K Sawamatsu	6	6
		S Irvine	6	3					L Blachford	3	6	1
								6	K Sawamatsu	6	2	6

	First round							Second round							Third round							Quarterfinals
								7	K Harris	6	6
		M Van Haver	6	6					M Van Haver	2	4
		K Nomura	1	2											7	K Harris	6	6
		M Morgan	6	6											10	B Hawcroft	0	2
		J Whyte	3	1					M Morgan	1	6	2
								10	B Hawcroft	6	1	6
																						7	K Harris	4	3
																						2	E Goolagong	6	6
									M Gurdal	6	3	2
		L Charles	7	5	6				L Charles	3	6	6
		C O'Neil	6	7	2											L Charles	7	4	2
		Yang J-s	6	6											2	E Goolagong	6	6	6
		H Crozier	2	4					Yang J-s	3	1
								2	E Goolagong	6	6

• 1973 Australian Open – Women's draws and results at the International Tennis Federation