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 . In 2010, the highway was renumbered to form part of present-day NH 22, with NH 83 now used for a national highway located in the state of Tamil Nadu.