| Election Name: | 2011 Bristol City Council election |
| Country: | England |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2010 Bristol City Council elections |
| Previous Year: | 2010 |
| Next Election: | 2013 Bristol City Council elections |
| Next Year: | 2013 |
| Seats For Election: | 24 of 70 seats (One Third) to Bristol City Council |
| Majority Seats: | 36 |
| Election Date: | 5 May 2011 |
| Party1: | Liberal Democrats (UK) |
| Seats1: | 33 |
| Seat Change1: | 5 |
| Popular Vote1: | 21,682 |
| Percentage1: | 24.9% |
| Swing1: | 9.38% |
| Party2: | Labour Party (UK) |
| Seats2: | 21 |
| Seat Change2: | 4 |
| Popular Vote2: | 31,176 |
| Percentage2: | 35.79% |
| Swing2: | 9% |
| Party3: | Conservative Party (UK) |
| Seats3: | 14 |
| Popular Vote3: | 18,215 |
| Percentage3: | 20.91% |
| Swing3: | 6.31% |
| Party4: | Green Party of England and Wales |
| Seats4: | 2 |
| Seat Change4: | 1 |
| Popular Vote4: | 12,535 |
| Percentage4: | 14.39% |
| Swing4: | 6.46% |
| Council control | |
| Posttitle: | Council control after election |
| Before Election: | Liberal Democrats |
| After Election: | No Overall Control |
The 2011 Bristol City Council elections were held on Thursday 5 May 2011, for 24 seats, that being one third of the total number of councillors. The Liberal Democrats, who had won overall control of the council in 2009 and increased their majority in 2010, experienced a drop in support and lost 5 seats; 4 to the Labour Party and 1 to the Green Party, which gained its second ever council seat in Bristol. This meant that the Lib Dems no longer had a majority on the council. However, they continued to run the council, relying on opposition groups to vote through any proposal.
| Party | 2010 Cllrs | Net Gain/Loss | 2011 Cllrs | |
|---|---|---|---|---|
| 14 | - | 14 | ||
| 1 | +1 | 2 | ||
| 17 | +4 | 21 | ||
| 38 | -5 | 33 | ||
| Total | 70 | - | 70 | |