2016 Welwyn Hatfield Borough Council election

The 2016 Welwyn Hatfield Borough Council election took place on 5 May 2016 to elect members of Welwyn Hatfield Borough Council in England. This was on the same day as other local elections. All seats were up for election following boundary changes that came into effect that year. Despite a relatively minor drop in their share of the popular vote, the boundary changes resulted in the Conservatives losing several seats on the council, although they still maintained majority control.

Haldens
A by-election was held on 17 November 2016 following the resignation of Malcolm Spinks.

Panshanger
A by-election was held on 4 May 2017 following the resignation of Martyn Levitt.

Hatfield Villages
A by-election was held on 8 June 2017 following the death of Howard Morgan.

Handside
A by-election was held on 14 December 2017 following the resignation of Rachel Basch.