Thearoor (also spelt Therur) is a small settlement in Kanyakumari District, Tamil Nadu. Lying near Nagercoil, the town spans over an area of about 10 sq km. Marungoor is situated in the east, Nallur in the north-east, Neendakara in the south-west and Nagercoil in the west. Suchindram is to the south of Thearoor.
Nagercoil, Sanguthurai Beach, Thovalai, Kanyakumari and Vattakottai are nearby tourist spots.
Trivandrum International Airport is the nearest airport. Nagercoil Junction Railway Station serves the town. Thearoor can be reached from Nagercoil and Suchindram by road.