| Election Name: | 2015 Southampton City Council election |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2014 Southampton City Council election |
| Previous Year: | 2014 |
| Next Election: | 2016 Southampton City Council election |
| Next Year: | 2016 |
| Seats For Election: | A third of seats to Southampton City Council |
| Majority Seats: | 23 |
| Election Date: | 7 May 2015 |
| Party1: | Labour Party (UK) |
| Seats1: | 12 |
| Seats After1: | 26 |
| Popular Vote1: | 35,085 |
| Percentage1: | 34.2 |
| Swing1: | 7.1% |
| Party2: | Conservative Party (UK) |
| Seats2: | 8 |
| Seat Change2: | 2 |
| Seats After2: | 20 |
| Popular Vote2: | 34,928 |
| Percentage2: | 34.1 |
| Swing2: | 3.6% |
| Party3: | Independent (politician) |
| Seats3: | 1 |
| Seat Change3: | 1 |
| Seats After3: | 2 |
| Popular Vote3: | 2,498 |
| Percentage3: | 2.4 |
| Swing3: | 1.6% |
| Map Size: | 320px |
| Majority party | |
| Posttitle: | Majority party after election |
| Before Election: | Labour |
| After Election: | Labour |
The 2015 Southampton City Council election took place on 7 May 2015 to elect members of Southampton City Council in England. This was on the same day as other local elections.
After the election, the composition of the council was:
Just one week after the election, newly re-elected Labour councillor for Redbridge, Andrew Pope, who had represented the area since 2011, left Labour to sit as an independent, citing concerns he had with the leader of the council, Simon Letts, who he accused of "putting his own position ahead of the people of Southampton" and of lacking "vision and strong leadership".[1]
Southampton Council is elected in thirds, which means all comparisons are to the corresponding 2011 Southampton Council election.