Map showing the results of contested wards in the 1986 Stevenage Borough Council elections.
Council control before election
Labour
Council control after election
Labour
The 1986 Stevenage Borough Council election took place on 8 May 1986. This was on the same day as other local elections. One third of the council was up for election; the seats which were last contested in 1982. The Labour Party retained control of the council, which it had held continuously since its creation in 1973.