Singles
1998 Australian Men's Hardcourt Championships
Final
Champion	Lleyton Hewitt[1]
Runner-up	Jason Stoltenberg
Score	3–6, 6–3, 7–6(7–4)
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 1997 · Australian Men's Hardcourt Championships · 1999 →

Todd Woodbridge was the defending champion, but lost to Jason Stoltenberg in the semifinals.

Sixteen-year old wild card and Adelaide native Lleyton Hewitt won his first ATP title defeated Stoltenberg in the final, 3–6, 6–3, 7–6^(7–4). Stoltenberg would go on to coach Hewitt, beginning in 2001.

Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.

	Semifinals							Final[1]
		Jason Stoltenberg	6	6
	5	Todd Woodbridge	4	1
									Jason Stoltenberg	6	3	64
								WC	Lleyton Hewitt	3	6	77
	WC	Lleyton Hewitt	77	77
	WC	Andre Agassi	65	64

	First round							Second round							Quarterfinals							Semifinals
	1	J Björkman	6	6
		G Stafford	4	2				1	J Björkman	5	1
		J Stoltenberg	6	6					J Stoltenberg	7	6
		J Marín	4	1												J Stoltenberg	63	6	7
	Q	N Escudé	6	7											Q	N Escudé	77	1	5
		Rădulescu	0	5				Q	N Escudé	4	6	6
		B Black	5	3				7	T Johansson	6	4	4
	7	T Johansson	7	6																			J Stoltenberg	6	6
	4	M Norman	6	1	6																	5	T Woodbridge	4	1
		C Ruud	3	6	4			4	M Norman	6	2	1r
	Q	J Golmard	6	6				Q	J Golmard	1	6	0
	Q	D Dier	3	4											Q	J Golmard	6	4	4
		R Fromberg	6	3	5										5	T Woodbridge	2	6	6
	Q	J Knippschild	3	6	7			Q	J Knippschild	710	2	4
		M Damm	5	6	3			5	T Woodbridge	68	6	6
	5	T Woodbridge	7	4	6

	First round							Second round							Quarterfinals							Semifinals
	6	N Kiefer	3	6	4
		V Spadea	6	4	6				V Spadea	6	6
		S Doseděl	4	6	6				S Doseděl	1	2
		A Gaudenzi	6	2	1											V Spadea	5	6	1
		S Draper	4	4											WC	L Hewitt	7	3	6
	WC	L Hewitt	6	6				WC	L Hewitt	4	77	6
		M Woodforde	7	6					M Woodforde	6	61	1
	3	J Courier	5	3																		WC	L Hewitt	77	77
	8	D Hrbatý	3	77	3																	WC	A Agassi	65	64
		J Siemerink	6	65	6				J Siemerink	4	3
		S Sargsian	6	3	3			WC	A Agassi	6	6
	WC	A Agassi	4	6	6										WC	A Agassi	1	6	6
		B Steven	6	6												B Steven	6	1	1
		L Roux	3	3					B Steven	6	6
		K Carlsen	65	5				WC/2	G Kuerten	3	3
	WC/2	G Kuerten	77	7

Qualifying Draw