Iyyappanthangal is a neighborhood to the west of Chennai, Tamilnadu, India. It comes under Ayyappanthangal Village Panchayath comprising three villages - Ayyappanthangal, Kolathuvancheri, Thelliyar Agaram falling under Kundrathur Panchayath Union of Kanchipuram District. It is located 20 kilometres (12 mi) away from Fort St George on the Mount-Poonamallee Road. The nearest railway stations are at Guindy about 11 kilometres (6.8 mi) away and Avadi about 12 kilometres (7.5 mi) away. The Porur Junction where a much-needed road overbridge on the busy Guindy–Poonamallee stretch was built after a very long delay of nearly five years is just about 2 km from Iyyapanthangal and the Poonamallee Junction is just about 6 km from the town.