| Election Name: | 2023 Windsor and Maidenhead Borough Council election |
| Country: | Berkshire |
| Type: | parliamentary |
| Previous Election: | 2019 Windsor and Maidenhead Borough Council election |
| Previous Year: | 2019 |
| Next Election: | 2027 Windsor and Maidenhead Borough Council election |
| Next Year: | 2027 |
| Seats For Election: | All 41 seats to Windsor and Maidenhead Borough Council |
| Majority Seats: | 21 |
| Leader1: | Simon Werner |
| Party1: | Liberal Democrats (UK) |
| Last Election1: | 9 seats, 25.3% |
| Seats Before1: | 10 |
| Seats After1: | 22 |
| Seat Change1: | 13 |
| Leader2: | Andrew Johnson (defeated) |
| Party2: | Conservative Party (UK) |
| Last Election2: | 23 seats, 42.8% |
| Seats Before2: | 22 |
| Seats After2: | 7 |
| Seat Change2: | 16 |
| Party3: | The Borough First |
| Last Election3: | 3 seats, 12.1% |
| Seats Before3: | 3 |
| Seats After3: | 7 |
| Seat Change3: | 4 |
| Party4: | Residents Association |
| Last Election4: | 5 seats, 6.9% |
| Seats Before4: | 4 |
| Seats After4: | 4 |
| Party5: | National Flood Prevention Party |
| Last Election5: | 1 seat, 1.2% |
| Seats Before5: | 1 |
| Seats After5: | 1 |
| Party6: | Independent politician |
| Last Election6: | 1 seat, 1.3% |
| Seats Before6: | 1 |
| Seats After6: | 0 |
| Seat Change6: | 1 |
| Leader | |
| Posttitle: | Leader after election |
| Before Election: | Andrew Johnson |
| Before Party: | Conservative Party (UK) |
| After Election: | Simon Werner |
| After Party: | Liberal Democrats (UK) |
The 2023 Windsor and Maidenhead Borough Council election took place on 4 May 2023 to elect members of Windsor and Maidenhead Borough Council in Berkshire, England.[1] This was on the same day as other local elections. The election saw the Liberal Democrats win a majority of the seats on the council, which had previously been under Conservative control.
Windsor and Maidenhead Borough Council had been under Conservative majority control since 2007. The Conservative leader of the council was Andrew Johnson, who had been leader since 2019. Prior to the election, there were six registered political parties represented on the council (two of which were Residents' Associations) and one independent councillor. The Old Windsor Residents' Association, The Borough First Independents, and the one independent councillor had all formed a political group called the "Local Independents", led by Lynne Jones.[2] There was one vacancy on the council immediately before the election, where a Liberal Democrat councillor for Belmont ward had resigned in March 2023.[3]
The election saw the Liberal Democrats win 22 of the 41 seats on the council, up from 10 before the election, giving them an overall majority. The Conservatives saw their number of seats fall from 22 to 7.[4] One of the Conservatives to lose their seat was the leader of the council, Andrew Johnson.[5]
The Liberal Democrat leader, Simon Werner, was formally appointed leader of the council at the subsequent annual council meeting on 23 May 2023.[6] The Conservatives appointed Maureen Hunt to be their new leader in opposition.[7]
Before the election, the composition of the council was:
| 22 | 9 | 9 | |
After the election, the composition of the council became:
| 22 | 12 | 7 | |
|-
The Statement of Persons Nominated, which details the candidates standing in each ward, was released by Windsor and Maidenhead Borough Council following the close of nominations on 5 April 2023.
Gurch Singh had been elected as a Conservative in 2019 but had defected to the Liberal Democrats in 2020.[8]