| Election Name: | 2015 Hamburg state election |
| Country: | Hamburg |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2011 Hamburg state election |
| Previous Year: | 2011 |
| Next Election: | 2020 Hamburg state election |
| Next Year: | 2020 |
| Seats For Election: | All 121 seats in the Hamburg Parliament |
| Majority Seats: | 61 |
| Election Date: | 15 February 2015[1] |
| Turnout: | 3,530,097 (56.5%) 0.8% |
| Leader1: | Olaf Scholz |
| Party1: | Social Democratic Party of Germany |
| Last Election1: | 62 seats, 48.42% |
| Seats1: | 58 |
| Popular Vote1: | 1,611,274 |
| Seat Change1: | 4 |
| Percentage1: | 45.64% |
| Swing1: | 2.78% |
| Leader2: | Dietrich Wersich |
| Party2: | Christian Democratic Union (Germany) |
| Last Election2: | 28 seats, 21.88% |
| Seats2: | 20 |
| Popular Vote2: | 561,377 |
| Seat Change2: | 8 |
| Percentage2: | 15.90% |
| Swing2: | 5.98% |
| Leader3: | Katharina Fegebank |
| Party3: | Alliance 90/The Greens |
| Last Election3: | 14 seats, 11.16% |
| Seats3: | 15 |
| Popular Vote3: | 432,713 |
| Seat Change3: | 1 |
| Percentage3: | 12.26% |
| Swing3: | 1.10% |
| Leader4: | Dora Heyenn |
| Party4: | The Left (Germany) |
| Last Election4: | 8 seats, 6.40% |
| Seats4: | 11 |
| Seat Change4: | 3 |
| Percentage4: | 8.51% |
| Swing4: | 2.11% |
| Popular Vote4: | 300,567 |
| Leader5: | Katja Suding |
| Party5: | Free Democratic Party (Germany) |
| Last Election5: | 9 seats, 6.65% |
| Seats5: | 9 |
| Popular Vote5: | 262,157 |
| Seat Change5: | 0 |
| Percentage5: | 7.43% |
| Swing5: | 0.78% |
| Leader6: | Jörn Kruse |
| Party6: | Alternative for Germany |
| Last Election6: | Did not exist |
| Seats6: | 8 |
| Seat Change6: | 8 |
| Popular Vote6: | 214,833 |
| Percentage6: | 6.1% |
| Swing6: | New party |
| Map Size: | 450px |
| Mayor | |
| Before Election: | Olaf Scholz |
| Before Party: | Social Democratic Party of Germany |
| After Election: | Olaf Scholz |
| After Party: | Social Democratic Party of Germany |
The 2015 Hamburg state election was held on 15 February 2015 to elect the members of the 21st Hamburg Parliament. The incumbent Social Democratic Party (SPD) government led by First Mayor Olaf Scholz lost its majority. The SPD subsequently formed a coalition government with The Greens, and Scholz continued in office.
The table below lists parties represented in the 20th Hamburg Parliament.
| Name | Ideology | Leader(s) | 2011 result | |||||
|---|---|---|---|---|---|---|---|---|
| Votes (%) | Seats | |||||||
| bgcolor= | SPD | Social Democratic Party of Germany | Social democracy | Olaf Scholz | 48.42% | |||
| bgcolor= | CDU | Christian Democratic Union of Germany | Christian democracy | Dietrich Wersich | 21.88% | |||
| bgcolor= | Grüne | Alliance 90/The Greens | Green politics | Katharina Fegebank | 11.16% | |||
| bgcolor= | FDP | Free Democratic Party | Classical liberalism | Katja Suding | 6.65% | |||
| bgcolor= | Linke | The Left | Democratic socialism | Dora Heyenn | 6.40% | |||
| Polling firm | Fieldwork date | Sample size | SPD | CDU | Grüne | FDP | Linke | AfD | Others | Lead | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 state election | data-sort-value="2015-02-15" | 15 Feb 2015 | – | 45.64 | 15.90 | 12.26 | 7.43 | 8.51 | 6.09 | 4.17 | 29.74 | ||
| Forschungsgruppe Wahlen | data-sort-value="2015-02-12" | 11–12 Feb 2015 | 1,113 | 47 | 17 | 12 | 6 | 8.5 | 5 | 4.5 | 30 | ||
| Forschungsgruppe Wahlen | data-sort-value="2015-02-06" | 3–5 Feb 2015 | 1,176 | 45 | 19 | 11 | 6 | 9.5 | 5 | 4.5 | 26 | ||
| Infratest dimap | data-sort-value="2015-02-05" | 3–4 Feb 2015 | 1,001 | 46 | 18 | 11 | 5.5 | 9 | 5.5 | 5 | 28 | ||
| Infratest dimap | data-sort-value="2015-01-29" | 23–27 Jan 2015 | 1,000 | 44 | 20 | 13 | 5 | 9 | 6 | 3 | 24 | ||
| Universität Hamburg | data-sort-value="2015-02-10" | 5–21 Jan 2015 | 235 | 44.6 | 22.6 | 14.9 | 2.8 | 9.1 | 2.9 | 3.2 | 22.0 | ||
| INSA | data-sort-value="2015-01-14" | 7–13 Jan 2015 | 1,000 | 42 | 23 | 14 | 4 | 7 | 6 | 4 | 19 | ||
| Infratest dimap | data-sort-value="2015-01-14" | 9–12 Jan 2015 | 1,000 | 43 | 22 | 14 | 4 | 8 | 5 | 4 | 21 | ||
| Universität Hamburg | data-sort-value="2015-02-10" | 5 Nov–23 Dec 2014 | 511 | 39.7 | 20.6 | 21.8 | 2.8 | 8.9 | 3.2 | 3.0 | 19.1 | ||
| mafo.de | data-sort-value="2014-12-15" | 15 Dec 2014 | 500 | 42 | 22 | 14 | 2 | 8 | 6 | 6 | 20 | ||
| Infratest dimap | data-sort-value="2014-12-11" | 5–9 Dec 2014 | 1,005 | 43 | 24 | 14 | 2 | 9 | 4 | 4 | 19 | ||
| GESS | data-sort-value="2014-11-08" | 24 Oct–3 Nov 2014 | 1,002 | 45 | 27 | 11 | 2 | 7 | 4 | 4 | 18 | ||
| mafo.de | data-sort-value="2014-05-09" | 9 May 2014 | 500 | 38.5 | 22.6 | 13.7 | 2.9 | 7.8 | 5.8 | 8.7 | 15.9 | ||
| GESS | data-sort-value="2014-02-15" | 27 Jan–4 Feb 2014 | 1,003 | 48 | 24 | 11 | 3 | 8 | ? | ? | 24 | ||
| Infratest dimap | data-sort-value="2014-01-15" | 9–13 Jan 2014 | 1,000 | 42 | 25 | 13 | 5 | 9 | 3 | 3 | 17 | ||
| Universität Hamburg | data-sort-value="2013-06-26" | 8 May–24 Jun 2013 | 636 | 43 | 21 | 18 | 4 | 8 | – | 2 | 22 | ||
| GESS | data-sort-value="2013-02-09" | 29 Jan–4 Feb 2013 | 1,003 | 51 | 23 | 13 | 2 | 4 | – | 5 | 28 | ||
| Universität Hamburg | data-sort-value="2012-10-18" | 16 Apr–3 Aug 2012 | 468 | 42.0 | 20.8 | 21.5 | 4.4 | 4.5 | – | 6.9 | 21.2 | ||
| GESS | data-sort-value="2012-02-19" | 7–14 Feb 2012 | 1,006 | 52 | 21 | 12 | 2 | 5 | – | ? | 31 | ||
| Infratest dimap | data-sort-value="2012-01-19" | 13–18 Jan 2012 | 1,000 | 51 | 20 | 14 | 3 | 4 | – | 8 | 31 | ||
| YouGov | data-sort-value="2011-12-07" | 21 Nov–2 Dec 2011 | 1,031 | 44 | 21 | 13 | 3 | 7 | – | 12 | 23 | ||
| Psephos | data-sort-value="2011-06-13" | 1–9 Jun 2011 | 1,003 | 47 | 20 | 14 | 7 | 7 | – | 5 | 27 | ||
| 2011 state election | data-sort-value="2011-02-20" | 20 Feb 2011 | – | 48.42 | 21.88 | 11.16 | 6.65 | 6.40 | – | 5.48 | 26.54 |