No overall control Tony Kingsbury Conservative Elections to Welwyn Hatfield Borough Council took place on 6 May 2021.

At the previous election the Liberal Democrats managed to gain enough of the popular vote to end the Conservatives's majority of the council for the first time since 2002.

However, the results saw the Conservatives regaining much of the popular vote at the cost of the Liberal Democrats, with a swing of nearly 10 points.

This marked the first time Labour failed to win a seat in a set of Welwyn Hatfield's local elections in the council's history.

The Green Party also nearly doubled their share of the vote, although they still finished last in all their contested seats.