Thattayil is a village near Pandalam in the Pathanamthitta district, state of Kerala, India.

The main agricultural products are: rubber, rice, plantain, coconut, cashew, black pepper, and ginger.

[citation needed] Thattayil is famous for the Orippurathu Bhagavathy temple.

Mannathu Padmanabhan started the Nair Service Society Karayogam movements in this village.

Thattayil has NSS Karayogam Numbers 1 (Edamaly/Mallika) and 2 (Bhagavathickum Padinjare).