The 1987 Welwyn Hatfield District Council election took place on 7 May 1987 to elect members of Welwyn Hatfield District Council in England.[1] This was on the same day as other local elections. A third of the seats were up for contest; one from each ward, plus an additional seat in Welwyn South to fill a casual vacancy. The Conservatives managed to gain a seat from Labour, although their share of the vote was not enough to seriously threat Labour's majority on the council.