The 1998 Swisscom Challenge was a women's tennis tournament played on indoor hard courts at the Schluefweg in Zürich, Switzerland that was part of Tier I of the 1998 WTA Tour. It was the 15th edition of the tournament and was held from October 12 through October 18, 1998.
| 1998 Swisscom Challenge | |
|---|---|
| Date | October 12–18 |
| Edition | 15th |
| Category | Tier I |
| Surface | Hard / indoor |
| Location | Zürich, Switzerland |
| Venue | Schluefweg |
| Champions | |
| Singles | |
 Lindsay Davenport | |
| Doubles | |
| Serena Williams / Venus Williams | |
Finals edit
Singles edit
Lindsay Davenport defeated Venus Williams 7–5, 6–3
- It was Davenport's 6th title of the year and the 19th of her career.
Doubles edit
Serena Williams / Venus Williams defeated 
Mariaan de Swardt / 
Elena Tatarkova 5–7, 6–1, 6–3
- It was Serena Williams' 4th title of the year and the 4th of her career. It was Venus Williams' 7th title of the year and the 7th of her career.