The Southern Division, or Padmanabhapuram Division till 1921 and Trivandrum Division from 1921 to 1949, was one of the administrative subdivisions of the princely state of Travancore. It covered the five taluks of Agastiswaram, Eraniel, Kalkulam, Thovalay and Vilavancode and was administered by a civil servant of rank Diwan Peishkar equivalent to a District Collector in British India. The Southern division was predominantly Tamil-speaking in contrast to the other three divisions where Malayalam was spoken. In 1920, the neighbouring Trivandrum was also merged with the Southern division. In 1949, the princely state of Travancore was dissolved and the Southern Division was included in the Travancore-Cochin state of India.