Chantilly is a commune in the Oise department in the Valley of the Nonette in the Hauts-de-France region of Northern France. Surrounded by Ch…Chantilly is a commune in the Oise department in the Valley of the Nonette in the Hauts-de-France region of Northern France. Surrounded by Chantilly Forest, the town of 10,863 inhabitants falls within the metropolitan area of Paris. It lies 38.4 km north-northeast of the centre of Paris and together with six neighbouring communes forms an urban area of 37,254 inhabitants.