Blyth Valley Borough Council elections were generally held every four years between the council's creation in 1974 and its abolition in 2009. Blyth Valley was a non-metropolitan district in Northumberland, England. The council was abolished and its functions transferred to Northumberland County Council with effect from 1 April 2009.
The first election to the council was held in 1973, initially operating as a shadow authority before coming into its powers on 1 April 1974. From 1974 until its abolition in 2009 political control of the council was as follows: