Chassenon (French pronunciation: [ʃasnɔ̃]; Occitan: Chassanom) is a commune in the Charente department in southwestern France.

Situated on the Agrippan Way (Lyon - Saintes), Cassinomagus was, in the Roman times, important enough to be mentioned on the mediaeval Peutinger map as one of the two secondary towns between Limoges and Saintes.

This sanctuary consisted of several monuments: a big temple, two small ones, a theatre (amphitheatre ?

The impactite, which is part of the Rochechouart impact structure, was quarried north-west of Rochechouart near Chassenon, was the stone principally used in the building of the monumental Roman baths of Cassinomagus.

This Charente geographical article is a stub.