Rohtas

district Rohtas est l'un des trente-huit districts de l'Etat du Bihar, en Inde.

Rohtas district (Hindi: रोहतास ज़िला; Urdu: روہتاس ضلع) is one of the thirty-eight districts of Bihar state, India. It came into existence when Shahabad District was bifurcated into Bhojpur & Rohtas in 1972.

The Rohtas district is a part of Patna Division, and it has an area of 3850 km² (square kilometres), a population of 2,448,762 (2001 census), and a population density of 636 persons per km². The languages spoken in this area are Bhojpuri, Hindi and English.