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
References
- ^ "1978 Nice – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1978 Nice – Doubles draw". Association of Tennis Professionals (ATP).