The 1998 Davidoff Swiss Indoors was a men's tennis tournament played on indoor carpet courts. It was the 29th edition of the event known that year as the Davidoff Swiss Indoors, and was part of the World Series of the 1998 ATP Tour. It took place at the St. Jakobshalle in Basel, Switzerland, from 5 October until 11 October 1998. Sixth-seeded Tim Henman won the singles title.[1]
See main article: 1998 Davidoff Swiss Indoors – Singles. 
Tim Henman defeated 
Andre Agassi 6–4, 6–3, 3–6, 6–4
See main article: 1998 Davidoff Swiss Indoors – Doubles. 
Olivier Delaître / Fabrice Santoro defeated Piet Norval / Kevin Ullyett, 6–3, 7–6