| Details | |
|---|---|
| Duration | March 5 – November 9 |
| Edition | 9th |
| Tournaments | 9 |
| Achievements (singles) | |
| Most tournament titles |  Marcelo Ríos (3) |
| Most tournament finals | Marcelo Ríos (3) |
← 1997 1999 → | |
The 1998 ATP Super 9 (also known as Mercedes-Benz Super 9 for sponsorship reasons) were part of the 1998 ATP Tour, the elite tour for professional men's tennis organised by the Association of Tennis Professionals.