Saint-Martin-Vésubie is a commune of the Alpes-Maritimes department, Provence-Alpes-Côte d'Azur region in Southeastern France. Established on the edge of a glacial plate, it had a population of 1,327 in 2008. It was named after the Vésubie, a local river.

Alpes-Maritimes is a department of France located in the country's southeast corner, on the Italian border and Mediterranean coast. Part of the Provence-Alpes-Côte d'Azur region, it encompasses the French Riviera alongside neighbouring Var. Alpes-Maritimes had a population of 1,094,283 in 2019. Its prefecture is Nice, with Grasse as the sole subprefecture.