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]
← 1977 · Open de Nice Côte d'Azur · 1979 →

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.

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.

François Jauffret / Patrice Dominguez defeated Jan Kodeš / Tomáš Šmíd 6–4, 6–0

• ITF tournament edition details