Ramanathichanputhur is a village situated near Marungoor in Kanyakumari District, Tamil Nadu.

Vellalars converted to Christianity during the 17th century from nearby villages like Marungoor, Iraviputhur, Theroor, etc., and for marriage purposes they get relationship with Vadakkankulam, North Rajavoor, Kuruvinatham villages, because those vellalars are already in the faith of Christianity.

Both the communities (Nadar and vellalar) are Roman Catholic, though there is no inter marriage due to strong cast sensitivity.

Now the Old church is renovated and an infant Jesus statue kept inside for worship.

Before the state re-organisation was done, this village was the east border of South Thiruvithangoor.