Dhamnagar is a Vidhan Sabha constituency of Bhadrak district, Odisha.

[1] This constituency includes Dhamnagar block and 12 GPs (Paliabindha, Achak, Dolasahi, Guamal, Talapada, Kubera, Biliana, Baro, Bodak, Kanpada, Shyamsundarpur and Talagopabindha) of Tihidi block.

In 2019 election, Bharatiya Janata Party candidate Bishnu Charan Sethi defeated Biju Janata Dal candidate Rajendra Kumar Das by a margin of 4,625 votes.

[13] In 2014 election, Biju Janata Dal candidate Muktikanta Mandal defeated Bharatiya Janata Party candidate Bishnu Charan Sethi by a margin of 9,192 votes.

[16] In 2009 election, Biju Janata Dal candidate Rajendra Kumar Das defeated Bharatiya Janata Party candidate Bishnu Charan Sethi by a margin of 4,944 votes.