Singles
1998 Generali Open
Final
Champion	Albert Costa[1]
Runner-up	Andrea Gaudenzi
Score	6–2, 1–6, 6–2, 3–6, 6–1
Details
Draw	48
Seeds	16
Events
Singles Doubles
← 1997 · Generali Open · 1999 →

The 1998 Generali Open was a men's tennis tournament played on Clay in Kitzbühel, Austria that was part of the International Series of the 1998 ATP Tour. It was the forty-third edition of the tournament and was held from 27 July – 2 August 1998.

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

	Semifinals							Final[1]
	16	Franco Squillari	5	6	3
	3	Albert Costa	7	1	6
								3	Albert Costa	6	1	6	3	6
								7	Andrea Gaudenzi	2	6	2	6	2
	6	Francisco Clavet	2	6	2
	7	Andrea Gaudenzi	6	2	6

	First round							Second round							Third round							Quarterfinals
								17	M Safin	6	4
		W Arthurs	6	6	6				W Arthurs	7	6
		M Meneschincheri	4	7	2											W Arthurs	6	7	4
		C Ruud	6	6											16	F Squillari	7	6	6
		Á López Morón	1	4					C Ruud	4	3
								16	F Squillari	6	6
																						16	F Squillari	6	4	6
																						8	R Fromberg	4	6	4
								9	C Doseděl	2	2
		L Arnold	3	6	6				L Arnold	6	6
		O Gross	6	4	3											L Arnold	6	2	4
		T Schiessling	6	6											8	R Fromberg	3	6	6
		G Mandl	4	2					T Schiessling	7	3	3
								8	R Fromberg	5	6	6

	First round							Second round							Third round							Quarterfinals
									R Schüttler	1	3
		R Schüttler	6	7				3	A Costa	6	6
		B Bachert	4	6											3	A Costa	6	3	6
		S Huet	1	6	6											S Huet	4	6	3
		Á Calatrava	6	3	4				S Huet	4	5
								14	C Costa	6	0r
																						3	A Costa	2	6	6
																						12	F Dewulf	6	3	4
									S Grosjean	7	3	3
		S Grosjean	6	7				12	F Dewulf	6	6	6
		P Tramacchi	4	6											12	F Dewulf	6	6
		J Krošlák	2	7	7										5	T Muster	2	4
		M Filippini	6	6	6				J Krošlák	2	6	2
								5	T Muster	6	4	6

	First round							Second round							Third round							Quarterfinals
									C Vinck	3	3
		C Vinck	6	7				6	F Clavet	6	6
		M Craca	1	5											6	F Clavet	6	6
		M Hipfl	4	6	7											M Hipfl	4	1
		G Blanco	6	3	6				M Hipfl	6	6
								11	H Arazi	2	1
																						6	F Clavet	6	6
																						13	F Meligeni	3	1
									W Schranz	4	5
		W Schranz	6	6	6			13	F Meligeni	6	7
		JA Viloca	7	1	1										13	F Meligeni	7	6
		B Karbacher	7	6												B Karbacher	6	3
		S Koubek	6	3					B Karbacher	4	6	7
								4	A Berasategui	6	4	6

	First round							Second round							Third round							Quarterfinals
									L Rehmann	6	2
		L Rehmann	6	6				7	A Gaudenzi	7	6
		A Schneiter	0	2											7	A Gaudenzi	5	6	6
		H Dreekmann	6	6											10	J Alonso	7	2	4
		E Benfele Álvarez	4	3					H Dreekmann	6	2	3
								10	J Alonso	4	6	6
																						7	A Gaudenzi	6	7
																						15	N Lapentti	3	6
									F Vicente	4	1
		F Vicente	6	7				15	N Lapentti	6	6
		M Sinner	1	5											15	N Lapentti	6	6
		R Vašek	7	1	6										2	Y Kafelnikov	4	1
		A Portas	5	6	2				R Vašek	7	3	6
								2	Y Kafelnikov	6	6	7