1978 Nice International Open
| 1978 Nice International Open | |
|---|---|
| Date | 17–23 April |
| Edition | 7th |
| Category | Grand Prix |
| Draw | 32S / 16D |
| Prize money | $50,000 |
| Surface | Clay / outdoor |
| Location | Nice, France |
| Venue | Nice Lawn Tennis Club |
| Champions | |
| Singles | |
 José Higueras [1] | |
| Doubles | |
 François Jauffret / Patrice Dominguez [2] | |
The 1978 Nice International Open, also known by its sponsored name Montano-Snauwaert International Championships, was a men's tennis tournament played on outdoor clay courts at the Nice Lawn Tennis Club in Nice, France, and was part of the 1978 Colgate-Palmolive Grand Prix. It was the seventh edition of the tournament and was held from 17 April until 23 April 1978. First-seeded José Higueras won the title.
Finals
Singles
José Higueras defeated Yannick Noah 6–3, 6–4, 6–4
- It was Higueras' 2nd singles title of the year and the 4th of his career.
Doubles
François Jauffret / Patrice Dominguez defeated 
Jan Kodeš / Tomáš Šmíd 6–4, 6–0