| Election Name: | 2021 Trafford Metropolitan Borough Council election |
| Country: | England |
| Flag Image: | Coat_of_arms_of_Trafford_Metropolitan_Borough_Council.png |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2019 Trafford Metropolitan Borough Council election |
| Previous Year: | 2019 |
| Next Election: | 2022 Trafford Metropolitan Borough Council election |
| Next Year: | 2022 |
| Seats For Election: | 25 of 63 seats to Trafford Metropolitan Borough Council |
| Majority Seats: | 32 |
| 3Blank: | Swing (pp)--> |
| Leader of the Council | |
| Before Election: | Andrew Western |
| Before Party: | Labour Party (UK) |
| Posttitle: | Leader of the Council after election |
| After Election: | Andrew Western |
| After Party: | Labour Party (UK) |
| Party1: | Labour Party (UK) |
| Seats Before1: | 35 |
| Seats1: | 16 |
| Seats After1: | 40 |
| Popular Vote1: | 40,453 |
| Percentage1: | 45.5% |
| Party2: | Conservative Party (UK) |
| Seats Before2: | 20 |
| Seats2: | 7 |
| Seats After2: | 17 |
| Popular Vote2: | 29,906 |
| Percentage2: | 33.6% |
| Party3: | Green Party of England and Wales |
| Seats Before3: | 3 |
| Seats3: | 1 |
| Seats After3: | 3 |
| Popular Vote3: | 11,167 |
| Percentage3: | 12.5% |
| Party4: | Liberal Democrats (UK) |
| Seats Before4: | 3 |
| Seats4: | 1 |
| Seats After4: | 3 |
| Popular Vote4: | 7,101 |
| Percentage4: | 8.0% |
The 2021 Trafford Metropolitan Borough Council election to elect members of Trafford Metropolitan Borough Council in England took place on 6 May 2021. As with many other local elections in England, it was postponed from May 2020, due to the COVID-19 pandemic.
One third of council seats were contested in the election, with each successful candidate serving a two-year term of office rather than the normal four due to a boundary review to be implemented in 2023.[1] Four additional seats were also contested in concurrent by-elections; seats which had become vacant due to deaths and resignations.
| Party | Votes | Seats | Full Council | |||||||
| Labour Party | 40,453 (45.5%) | 4.2 | 16 (64.0%) | 5 | 40 (63.5%) | |||||
| Conservative Party | 29,906 (33.6%) | 4.2 | 7 (28.0%) | 3 | 17 (27.0%) | |||||
| Green Party | 11,167 (12.5%) | 0.1 | 1 (4.0%) | 3 (4.8%) | ||||||
| Liberal Democrats | 7,101 (8.0%) | 2.6 | 1 (4.0%) | 3 (4.8%) | ||||||
| Women's Equality Party | 134 (0.2%) | N/A | 0 (0.0%) | N/A | 0 (0.0%) | |||||
| Independent | 120 (0.1%) | 0.3 | 0 (0.0%) | 0 (0.0%) | ||||||
| UKIP | 75 (0.1%) | 5.1 | 0 (0.0%) | 0 (0.0%) | ||||||
| The Democratic Network | 42 (0.1%) | N/A | 0 (0.0%) | N/A | 0 (0.0%) | |||||
| 40 | 3 | 3 | 17 |