| 1998 Monte Carlo Open | |
|---|---|
| Date | 20–26 April |
| Edition | 92nd |
| Category | ATP Masters Series |
| Draw | 56S / 28D |
| Prize money | $2,450,000 |
| Surface | Clay / outdoor |
| Location | Roquebrune-Cap-Martin, France |
| Venue | Monte Carlo Country Club |
| Champions | |
| Singles | |
 Carlos Moyá[1] | |
| Doubles | |
 Jacco Eltingh / Paul Haarhuis[2] | |
The 1998 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts. It was the 92nd edition of the Monte Carlo Open, and was part of the ATP Masters Series of the 1998 ATP Tour. It took place at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France, near Monte Carlo, Monaco, from 20 April through 26 April 1998.
Fourteenth-seeded Carlos Moyá won the singles title.
- ^ "1998 Monte Carlo – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1998 Monte Carlo – Doubles draw". Association of Tennis Professionals (ATP).