1986 Welwyn Hatfield District Council election

The 1986 Welwyn Hatfield District Council election took place on 8 May 1986 to elect members of Welwyn Hatfield District Council in England. This was on the same day as other local elections. One third of the seats were contested. While Labour maintained their control of the council, two seats in Handside Ward went to the SDP-Liberal Alliance's candidates, marking the first time any party outside of Labour and the Conservatives won a seat in one of the council's local elections.