The District Council of Blyth was a local government area in South Australia from 1872 to 1987 seated at Blyth in the Mid North.
The District Council of Blyth was officially proclaimed on 11 January 1872 as constituting the entirety of the Hundred of Blyth. Five inaugural councillors were appointed at the time of proclamation: Edward Lawson, Henry Longmire, John Shepherd, Thomas Roberts and George Semmens.
In January 1888 the council gained the Hundred of Everard under the District Councils Act 1887 before losing it again in September of 1889 to the District Council of Snowtown.
In 1935, as a result of the statewide consolidation of local government areas, the Blyth council annexed most of the Hundred of Hart (east of the Gladstone railway line) from the District Council of Hutt and Hill Rivers and the two northern wards of the District Council of Hall (Hoyleton and Woodlands). From the Hutt and Hill Rivers annexation the new wards of Anama (north east) and Hart (north west) were created, and from the Hall annexation the new ward of Hoyleton (south) was created. The remainder of the new Blyth council area was to be split between three other wards: Blyth (centre east), Central (centre west), and Kybunga (centre south east).
On 9 December 1987, the council was amalgamated with the District Council of Snowtown to form the new District Council of Blyth-Snowtown.