Arjun Charan Sethi (born 18 September 1941) is an Indian politician and presently a member of the Biju Janata Dal (BJD) political party. In 1971, he was elected to the 5th Lok Sabha from Bhadrak constituency in Odisha as an Indian National Congress candidate. He was re-elected to the Lok Sabha in 1980 from the same constituency as an Indian National Congress (I) candidate. He was re-elected to the Lok Sabha in 1991 as a Janata Dal candidate from the same constituency.