| Election Name: | 2011 Dacorum Borough Council election |
| Country: | United Kingdom |
| Type: | parliamentary |
| Previous Election: | 2007 Dacorum Borough Council election |
| Previous Year: | 2007 |
| Next Election: | 2015 Dacorum Borough Council election |
| Next Year: | 2015 |
| Seats For Election: | All 51 seats on Dacorum Borough Council |
| Leader1: | Andrew Williams |
| Party1: | Conservative Party (UK) |
| Leaders Seat1: | Boxmoor |
| Popular Vote1: | 24,969 |
| Percentage1: | 51% |
| Last Election1: | 44 |
| Seats Before1: | 42 |
| Seats1: | 43 |
| Seat Change1: | +1 |
| Leader2: | Denise Rance |
| Party2: | Liberal Democrats (UK) |
| Leaders Seat2: | Tring Central |
| Last Election2: | 5 |
| Seats Before2: | 6 |
| Seats2: | 6 |
| Seat Change2: | 0 |
| Popular Vote2: | 9,734 |
| Percentage2: | 20% |
| Leader3: | Keith White |
| Party3: | Labour Party (UK) |
| Leaders Seat3: | Adeyfield West |
| Last Election3: | 2 |
| Seats Before3: | 3 |
| Seats3: | 2 |
| Seat Change3: | -1 |
| Popular Vote3: | 11,449 |
| Percentage3: | 24% |
| Map Size: | 325px |
| Leader of the Council | |
| Before Election: | Andrew Williams |
| Before Party: | Conservative Party (UK) |
| After Election: | Andrew Williams |
| After Party: | Conservative Party (UK) |
Elections to Dacorum Borough Council in Hertfordshire, England were held on 5 May 2011. The whole council was up for election. The last election for the Borough Council was held in May 2007.[1]