The Chahamanas of Shakambhari, colloquially known as the Chauhans of Sambhar or Chauhans of Ajmer, were an Indian dynasty that ruled parts of the present-day Rajasthan and neighbouring areas in India, between the 6th and 12th centuries. The territory ruled by them was known as Sapadalaksha. They were the most prominent ruling family of the Chahamana (Chauhan) Rajput clan.

Chauhan, a name derived from the historical Chahamanas, a clan name associated with various ruling Rajput families in the present-day Indian state of Rajasthan from seventh century onwards.