Kombai is a panchayat town in Theni District in the Indian state of Tamil Nadu, in the foot hills of the Western Ghats.
Kombai is located at .
Kombai has an average elevation of 399 metres (1309 feet). The village is situated near Western Ghats and is surrounded by mountains. North Side- Pannaipuram, East Side-Salamalai hills, West Side-Kerala border hills, South Side-Uthamapalayam town. Two mountain called Ramakkal mettu hills situated in west side & Salamali hills situated in east side.
India census, Kombai had a population of 12,820. Males constitute 50% of the population and females 50%. Kombai has an average literacy rate of 64%, higher than the national average of 59.5%: male literacy is 72%, and female literacy is 65%. In Kombai, 10% of the population is under 6 years of age.
The Bodinayakkanur railway station is the nearest railway station to Kombai.