2019 Spelthorne Borough Council election

The 2019 Spelthorne Borough Council election took place on 2 May 2019 to elect all members of Spelthorne Borough Council in England. The Conservatives retained control of the council, but with a reduced majority of 7, down from 31.

Sunbury Common

 * Ian Beardsmore was elected as a Liberal Democrat in 2015.

Staines South
The resignation of independent councillor Nichola Cornes (elected as a Liberal Democrat) on 25 January 2021 led to the Staines South by-election, held 6 May 2021, to coincide with the Surrey County Council elections 2021.

Staines
The resignation of Green Party councillor Jan Doerfel on 7 June 2021 led to the Staines by-election, held 22 July 2021.

Stanwell North
The resignation of Conservative Party councillor Jim McIlroy on 31 December 2021 led to the Stanwell North by-election, held 23 February 2022.

Changes of allegiance 2023–2027
The 2 May 2019 Spelthorne Borough Council elections resulted in 23 Conservative seats, 8 Liberal Democrat seats, four Labour seats, two Green Party seats and two Independents. The Conservative Party thus maintained their overwhelming majority on the council.

On 9 June 2020, 6 Conservative Councillors, including Council leader Ian Harvey and Deputy leader Olivia Rybinski, resigned from the Conservative party and created the new United Spelthorne Group on the council. With the Conservatives now having fewer than half of all seats on the council, the Borough is now in "no overall control", leaving the Conservative party without a governing majority for the first time in the Borough's history.

On 25 June 2020, John Boughtflower was elected as leader of the council and Jim McIlroy as his deputy.

On 27 May 2021, Lawrence Nichols (Liberal Democrats) was elected as leader and Joanne Sexton (Independent) as his deputy.

On 27 May 2022, John Boughtflower was elected as leader of the council and Tony Mitchell as his deputy.

On 8 March 2022, Veena Silva and Jenny Vinson - elected as Labour - disbanded the Independent Labour group to join the Breakthrough Party.