Sansi is a nomadic tribe, originally located in the Rajasthan area of northwestern India, but expelled in the 13th century by Muslim invaders and now spread to states of Rajasthan, Haryana, Punjab as well as scattered throughout India. They are often confused with other ethnic groups called Sansi, as Sansi is a widespread name in South Asia.
Their language is Sansiboli, Sansi or Bhilki that is a highly endangered Indo-Aryan language of the Central group, total speakers ca. 60,000 (2002). Their traditional occupations vary, from trading to farming.
During British rule in India they were placed under the Criminal Tribes Act 1871, hence stigmatized for a long time, after independence however they were denotified in 1952.
As the Sansiya, they were recorded in Uttar Pradesh in the 2011 Census of India. There they were a Scheduled Caste, with a population of 5689.