Doubles
1998 Mercedes-Benz Cup
Final
Champions	Patrick Rafter Sandon Stolle[1]
Runners-up	Jeff Tarango Daniel Vacek
Score	6–4, 6–4
Details
Draw	16
Seeds	4
Events
Singles Doubles
← 1997 · Los Angeles Open · 1999 →

The 1998 Mercedes-Benz Cup was a men's tennis tournament played on hardcourt in Los Angeles, United States that was part of the International Series of the 1998 ATP Tour. It was the seventy-first edition of the tournament and was held from July 27 through August 2, 1998.

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

	First round							Quarterfinals							Semifinals							Final[1]
	1	W Black S Lareau	7	4	4
		J Tarango D Vacek	6	6	6				J Tarango D Vacek	w/o
		G Ivanišević P Kilderry	7	6					G Ivanišević P Kilderry
		D Flach M Tebbutt	6	4												J Tarango D Vacek	7	6
	4	J-L de Jager R Koenig	6	4	6										4	J-L de Jager R Koenig	6	3
		B Bryan M Bryan	1	6	3			4	J-L de Jager R Koenig	5	6	6
		A Peterson E Taino	4	6	6				A Peterson E Taino	7	4	3
		L Jensen M Jensen	6	3	2																		J Tarango D Vacek	4	4
		G Stafford K Ullyett	6	6																		3	P Rafter S Stolle	6	6
		B Coupe K Kinnear	3	3					G Stafford K Ullyett	5	3
	3	P Rafter S Stolle	7	7				3	P Rafter S Stolle	7	6
		T Ketola D Roditi	6	6											3	P Rafter S Stolle	7	6
		W Ferreira M Ondruska	7	6												M Damm J Grabb	6	4
		W Black P Galbraith	6	3					W Ferreira M Ondruska	3	1
		M Damm J Grabb	6	6					M Damm J Grabb	6	6
		J-M Gambill V Spadea	4	2