Valsad district, historically known as Bulsar district is one of the 33 districts in the Western Indian state of Gujarat. It is bound by Navsari district to the north, Nashik district of Maharashtra state to the east, and Dadra and Nagar Haveli district of the Dadra and Nagar Haveli and Daman and Diu (DNHDD) union territory and the Palghar district of Maharashtra to the south. The Arabian Sea lies west of the district. The coastal Daman enclave of DNHDD is bounded by Valsad district on the north, east, and south. The district's administrative capital is Valsad. The district's largest city is Vapi.