Osian is an ancient town located in the Jodhpur District of Rajasthan state in western India. It is an oasis in the Thar Desert. The town is a panchayat village and the headquarters for Osian tehsil. It lies 69 km by road north of the district headquarters at Jodhpur, on a diversion off the main Jodhpur – Bikaner Highway. The under-construction Amritsar Jamnagar Expressway passes through this town.