Gournay-sur-Aronde (French pronunciation: [ɡuʁnɛ syʁ aʁɔ̃d]) is a commune in the Oise department in northern France.
Gournay-sur-Aronde is best known for a Late Iron Age sanctuary that dates back to the 4th century BCE, and was burned and levelled at the end of the 1st century BCE. In the 4th century AD a Gallo-Roman temple was built on the site.
A nemeton (plural: nemeta) was a sacred space of ancient Celtic religion. Nemeta appear to have been primarily situated in natural areas, often sacred groves. However, other evidence suggests that the word implied a wider variety of ritual spaces, such as shrines and temples. Evidence for nemeta consists chiefly of inscriptions and toponymy or place-names, which occur all across the Celtic world. Toponyms related to the word nemeton occur as far west as Galicia in the Iberian peninsula, as far north as Scotland, and as far east as central Turkey. The word is related to the name of the Nemetes tribe living by the Rhine between the Palatinate and Lake Constance in what is now Germany, and their goddess Nemetona.