Erukkattur is a village in the Koothanallur taluk of Thiruvarur district in Tamil Nadu, India. The village is located 10.2 km southwest of Thiruvarur and 10.5 km southeast of Koradacheri. Very recently^[when?] the taluk was changed from Kudavasal to Koothanallur.

As per the 2001 census, Erukattur had a population of 1,059 with 525 males and 534 females. The sex ratio was 1017. The literacy rate was 72.9.