| Election Date: | 6 May 2021 |
| Type: | parliamentary |
| Ongoing: | no |
| Election Name: | 2021 Rochdale Council election |
| Previous Election: | 2019 Rochdale Metropolitan Borough Council election |
| Previous Year: | 2019 |
| Next Election: | 2022 Rochdale Metropolitan Borough Council election |
| Next Year: | 2022 |
| Seats For Election: | One third of seats (20) of Rochdale Metropolitan Borough Council |
| Majority Seats: | 31 |
| Last Election3: | 1 seat, 10.9% |
| Seats Before3: | 3 |
| Percentage3: | 12.3% |
| Seats3: | 1 |
| Seats After3: | 3 |
| Popular Vote3: | 6,949 |
| Before Party: | Labour Party (UK) |
| Swing3: | 1.4% |
| Map Size: | 300px |
| After Party: | Labour Party (UK) |
| Party3: | Liberal Democrats (UK) |
| Council control | |
| Before Election: | Allen Brett |
| After Election: | Neil Emmott |
| Leader3: | Andy Kelly |
| Seats2: | 3 |
| Percentage2: | 31.5% |
| Leader1: | Allen Brett |
| Party1: | Labour Party (UK) |
| Last Election1: | 16 seats, 49.4% |
| Seats1: | 16 |
| Seats After1: | 45 |
| Seats Before1: | 45 |
| Popular Vote1: | 27,846 |
| Percentage1: | 49.4% |
| Party2: | Conservative Party (UK) |
| Leader2: | Ashley Dearnley |
| Seats Before2: | 9 |
| Last Election2: | 3 seats, 21.3% |
| Seats After2: | 9 |
| Popular Vote2: | 17,771 |
| Swing2: | 10.2% |
| Posttitle: | Subsequent council control |
The 2021 Rochdale Metropolitan Borough Council election took place on 6 May 2021 to elect members of Rochdale Borough Council in England. This was on the same day as other local elections.[1] One-third of the seats were up for election.