National Highway 83 (NH 83) was a former National Highway in India entirely within the state of Bihar.

NH 83 linked state capital, Patna (of Bihar) to Dobhi on former National Highway 2 (new NH 19) and passed through Jehanabad, Gaya and Bodhgaya.

The total length of NH 83 was about 130 km (81 mi).

[1] [2] After renumbering of national highways, new National Highway 83 is now located in the state of Tamil Nadu.