| 1999 Monte Carlo Open | |
|---|---|
| Date | 19 – 25 April |
| Edition | 93rd |
| Category | ATP Super 9 |
| Draw | 57S / 28D |
| Prize money | $2,450,000 |
| Surface | Clay / outdoor |
| Location | Roquebrune-Cap-Martin, France |
| Venue | Monte Carlo Country Club |
| Champions | |
| Singles | |
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| Doubles | |
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The 1999 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts. It was the 93rd edition of the Monte Carlo Open, and was part of the ATP Super 9 of the 1999 ATP Tour. It took place at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France, near Monte Carlo, Monaco, from 19 April through 25 April 1999.
Thirteenth-seeded Gustavo Kuerten won the singles title.
Gustavo Kuerten defeated
Marcelo Ríos, 6–4, 2–1, retired
Olivier Delaître /
Tim Henman defeated
Jiří Novák /
David Rikl, 6–2, 6–3