Men's singles
1989 New South Wales Open
1988 Champion	John Fitzgerald
Final
Champion	Aaron Krickstein
Runner-up	Andrei Cherkasov
Score	6–4, 6–2
Events
Singles men women Doubles men women
← 1988 · New South Wales Open · 1990 →

John Fitzgerald was the defending champion but did not compete that year.

Aaron Krickstein won in the final 6–4, 6–2 against Andrei Cherkasov.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

	First round							Second round							Quarterfinals							Semifinals							Final
	1	H Leconte	4	3
		P Lundgren	6	6					P Lundgren	6	6	2
		J Nyström	4	0					B Orešar	2	7	6
		B Orešar	6	6												B Orešar	7	6
		T Tulasne	6	7											7	W Masur	5	4
		D Nargiso	4	6					T Tulasne	5	2
		P Kühnen	3	7	4			7	W Masur	7	6
	7	W Masur	6	5	6																		B Orešar	0	6	4
	3	A Krickstein	6	6	6																	3	A Krickstein	6	2	6
		P Aldrich	3	7	2			3	A Krickstein	6	6
		J Rive	6	7					J Rive	3	4
	WC	P Doohan	4	6											3	A Krickstein	2	6	6
		M Davis	6	7												C-U Steeb	6	3	3
		G Layendecker	4	6					M Davis	5	3
		C-U Steeb	6	4	6				C-U Steeb	7	6
	5	D Cahill	3	6	1																								3	Aaron Krickstein	6	6
	6	C van Rensburg	6	7																									WC	Andrei Cherkasov	4	2
		A Olhovskiy	3	6				6	C van Rensburg	7	7
	Q	B Talbot	2	3					A Volkov	6	6
		A Volkov	6	6											6	C van Rensburg	5	3
		J Frawley	5	6	2										Q	O Delaître	7	6
		J Stoltenberg	7	4	6				J Stoltenberg	6	2
	Q	O Delaître	6	6				Q	O Delaître	7	6
	4	J Svensson	2	4																		Q	O Delaître	5	1
	8	M Gustafsson	6	6																		WC	A Cherkasov	7	6
	Q	A Mronz	2	2				8	M Gustafsson	6	1	1
		J Gunnarsson	6	4	3			Q	L Němeček	3	6	6
	Q	L Němeček	3	6	6										Q	L Němeček	1	3
		L Lavalle	4	1											WC	A Cherkasov	6	6
	WC	A Cherkasov	6	6				WC	A Cherkasov	6	6
		C Saceanu	4	6	6				C Saceanu	3	3
	2	A Chesnokov	6	4	4

• 1989 New South Wales Open Draw