Grillon is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France. It lies approximately 6 kil…Grillon is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France. It lies approximately 6 kilometres from the Château and village of Grignan. Grillon is twinned with Ano Syros, Greece.