| Election Name: | 2019 Windsor and Maidenhead Borough Council election |
| Country: | Berkshire |
| Type: | parliamentary |
| Previous Election: | 2015 Windsor and Maidenhead Borough Council election |
| Previous Year: | 2015 |
| Next Election: | 2023 Windsor and Maidenhead Borough Council election |
| Next Year: | 2023 |
| Seats For Election: | All 41 seats to Windsor and Maidenhead Borough Council |
| Majority Seats: | 21 |
| Turnout: | 38.1% |
| Party1: | Conservative Party (UK) |
| Last Election1: | 54 seats, 58.9% |
| Seats1: | 23 |
| Seat Change1: | 31 |
| Popular Vote1: | 35,999 |
| Percentage1: | 42.8% |
| Swing1: | 16.1% |
| Party2: | Liberal Democrats (UK) |
| Last Election2: | 1 seat, 18.8% |
| Seats2: | 9 |
| Seat Change2: | 8 |
| Popular Vote2: | 21,253 |
| Percentage2: | 25.3% |
| Swing2: | 6.5% |
| Party3: | Residents Association |
| Last Election3: | 2 seats, 2.0% |
| Seats3: | 5 |
| Seat Change3: | 3 |
| Popular Vote3: | 5,760 |
| Percentage3: | 6.9% |
| Swing3: | 4.9% |
| Party4: | The Borough First |
| Last Election4: | N/A |
| Seats4: | 3 |
| Seat Change4: | 3 |
| Popular Vote4: | 10,160 |
| Percentage4: | 12.1% |
| Swing4: | N/A |
| Party5: | Independent politician |
| Last Election5: | 0 seats, 3.7% |
| Seats5: | 0 |
| Popular Vote5: | 1,119 |
| Percentage5: | 1.3% |
| Swing5: | 2.4% |
| Party6: | National Flood Prevention Party |
| Last Election6: | 0 seats, 0.4% |
| Seats6: | 1 |
| Seat Change6: | 1 |
| Popular Vote6: | 998 |
| Percentage6: | 1.2% |
| Swing6: | 0.8% |
| Council control | |
| Posttitle: | Council control after election |
| Before Party: | Conservative Party (UK) |
| After Party: | Conservative Party (UK) |
The 2019 Windsor and Maidenhead Borough Council election took place on Thursday 2 May 2019. That was the same day as other United Kingdom local elections in order to elect members of Windsor and Maidenhead Council in Berkshire, England. The whole council was up for election.
Before the election, the composition of the council was:
The Independent Local Government Boundary Commission for England carried out an electoral review of the Royal Borough with the view to change our electoral arrangements from May 2019. The Commission announced the number of councillors was to reduce and also looked into the number of wards, their names and boundaries.[1] This reduced the number of councillors from 57 to 41.[2]
Before the election, the composition of the council was:
| 54 | 1 | 2 | |
After the election, the composition of the council became:
| 23 | 9 | 10 | |
|-