| Election Name: | 2018 Eastleigh election |
| Type: | parliamentary |
| Ongoing: | no |
| Party Colour: | Liberal Democrats (UK) |
| Previous Election: | 2016 Eastleigh Borough Council Elections |
| Previous Year: | 2016 |
| Next Election: | 2019 Eastleigh Borough Council Elections |
| Next Year: | 2019 |
| Seats For Election: | All 39 seats to Eastleigh Borough Council |
| Majority Seats: | 20 |
| Election Date: | 3 May 2018 |
| Party1: | Liberal Democrats (UK) |
| Seats Before1: | 33 |
| Seats1: | 32 |
| Seat Change1: | 1 |
| Popular Vote1: | 49,665 |
| Percentage1: | 51.1% |
| Party2: | Conservative Party (UK) |
| Seats Before2: | 6 |
| Seats2: | 4 |
| Seat Change2: | 2 |
| Popular Vote2: | 26,506 |
| Percentage2: | 27.2% |
| Seats Before3: | 5 |
| Seats3: | 3 |
| Seat Change3: | 2 |
| Popular Vote3: | 6,048 |
| Percentage3: | 6.2% |
| Council control | |
| Posttitle: | Council control after election |
| Before Election: | Liberal Democrats |
| After Election: | Liberal Democrats |
The 2018 Eastleigh Borough Council election took place on 3 May 2018 to elect all members of Eastleigh Borough Council.[1] The election was on new boundaries, with the overall size of the council being reduced by five seats, from 44 to 39.[2] [3] The outcome was a decisive victory for the incumbent Liberal Democrats.[4]
A * denotes an incumbent councillor seeking reelection.