Killiyoor is a panchayat town in Kanniyakumari district in the Indian state of Tamil Nadu.
Killiyoor is one of the 6 taluks in the Kanniyakumari district. It includes the revenue blocks of Munchirai and Killiyoor.
India census, Killiyoor had a population of 19,275. Males constitute 51% of the population and females 49%. Killiyoor has an average literacy rate of 75%, higher than the national average of 59.5%: male literacy is 77%, and female literacy is 72%. In Killiyoor, 11% of the population is under 6 years of age.
Killiyoor (State Assembly Constituency) is part of Kanniyakumari Lok Sabha constituency.
State Assembly Representatives from Killiyoor are