Debagarh District, also known as Deogarh District(Odia:ଦେବଗଡ ଜିଲ୍ଲା), is a district of Odisha state, India. It is located in the northern part of the state. Debagarh is the district headquarters. The district covers an area of 2781.66 km². The district has a population of 274,095 (2001 Census). As of 2011 it is the least populous district of Odisha (out of 30).