| Election Name: | 2021 City of Lincoln Council election[1] |
| Country: | United Kingdom |
| Type: | parliamentary |
| Party Colour: | Labour |
| Previous Election: | 2019 City of Lincoln Council election |
| Previous Year: | 2019 |
| Next Election: | 2022 City of Lincoln Council election |
| Next Year: | 2022 |
| Election Date: | 6 May 2021 |
| Majority Seats: | 17 |
| Turnout: | 31.27% |
| Party1: | Labour Party (UK) |
| Last Election1: | 24 |
| Seats1: | 5 |
| Seats After1: | 22 |
| Seat Change1: | 2 |
| Popular Vote1: | 7,921 |
| Percentage1: | 40.7% |
| Swing1: | 3.5 |
| Leader1: | Ric Metcalfe |
| Party2: | Conservative Party (UK) |
| Last Election2: | 9 |
| Seats2: | 5 |
| Seats After2: | 10 |
| Seat Change2: | 1 |
| Popular Vote2: | 8,114 |
| Percentage2: | 41.7% |
| Swing2: | 11 |
| Leader2: | Thomas Dyer |
| Party3: | Liberal Democrats (UK) |
| Last Election3: | 0 |
| Seats3: | 1 |
| Seats After3: | 1 |
| Seat Change3: | 1 |
| Popular Vote3: | 1,709 |
| Percentage3: | 8.8% |
| Swing3: | 2.9 |
| Leader3: | Clare Smalley |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
| Before Election: | Labour |
| After Election: | Labour |
The 2021 City of Lincoln Council election took place on 6 May 2021 to elect members of City of Lincoln Council in Lincolnshire, England.[2] This was held on the same day as other local elections. One third 33 seats were up for election, with one councillors in each of the 11 wards being elected. As the election in 2016 had been an all-out election with new ward boundaries, the seats of the candidates that had finished first in each ward in the all-out 2016 election were now up for election.