Alangayam is a Selection Grade Town Panchayat in Tirupathur district in the state of Tamil Nadu, India. It is located at 18 km from Vaniyambadi. Alangayam is 8 km from the famous Vainu Bappu Observatory in Kavalur. This town is surrounded by mountains on all sides, which keeps Alangayam at a moderate temperature for most of the year.