Arumanai or Arumana is a Panchayat town in Kanyakumari district in the state of Tamil Nadu, India.

The plot of critically acclaimed Malayalam language movie Ozhimuri is set in the background of Arumanai.

The largest river of Kanyakumari district, the Kodayar, flows along the town's north-eastern and eastern boundary.

Arumana is in Vilavancode taluk and since it is very close to the foothills of the Western Ghats, all the available lands in the town have been used for raising rubber.

Government Public Library located in front of the Management Higher Secondary School Arumana.