River Chantilly is a river located in the Oise department of France. It is a tributary of the River Aisne and is approximately 40 km long. The river is known for its picturesque scenery and is popular with tourists. The name Chantilly is derived from the Latin word 'cantillus' which means 'little song'. The river is also known for its traditional chantilly chant, which is a type of folk music that has been passed down through generations.