Yanaon was one of the five principal settlements of French India between 1731 and 1954. It was referred to in British records as Yanam.

French India, formally the Établissements français dans l'Inde, was a French colony comprising five geographically separated enclaves on the Indian subcontinent that had initially been factories of the French East India Company. They were de facto incorporated into the Republic of India in 1950 and 1954. The enclaves were Pondichéry, Karikal, Yanam on the Coromandel Coast, Mahé on the Malabar Coast and Chandernagor in Bengal. The French also possessed several loges inside other towns, but after 1816, the British denied all French claims to these, which were not reoccupied.