Eriyur is a village in Singampunari Taluk in Sivaganga district of Tamil Nadu, India. It is a large village consisting of two Panchayat villages: Eriyur and Mampatti Devasthanam. The adjoining villages Valayapatti and Ulaginipatti are also administratively and culturally linked to Eriyur. It is a constituent of the ancient "Mallakottai Nadu" once, which was a part of 'Sivagangai Seemai'.