Seithur is a small panchayat town in Rajapalayam taluk, Virudhunagar district in the Indian state of Tamil Nadu.

It is located on the Rajapalayam to Tenkasi National Highway 744, 65 km from Courtallam, and 5km from the Sasthakovil river.

There are many nurseries, a primary school, and a government secondary school, a government hospital, two police stations: a SUB-REGISTRAR office that is the head facility for the nearest 18 villages all places freely donated by Seithur Zamindar.

Agriculture is the main industry in the town, which produces paddy, cotton, coconut and sugarcane.

This article related to a location in Virudhunagar district, Tamil Nadu, India is a stub.