| Election Name: | 2003 Hesse state election |
| Country: | Hesse |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1999 Hessian state election |
| Previous Year: | 1999 |
| Next Election: | 2008 Hessian state election |
| Next Year: | 2008 |
| Seats For Election: | All 110 seats of the Landtag of Hesse |
| Majority Seats: | 56 |
| Election Date: | 2 February 2003 |
| Turnout: | 2,734,992 (64.6%) 1.8% |
| Leader1: | Roland Koch |
| Party1: | Christian Democratic Union of Germany |
| Last Election1: | 50 seats, 43.4% |
| Seats1: | 56 |
| Seat Change1: | 6 |
| Popular Vote1: | 1,333,863 |
| Percentage1: | 48.8% |
| Swing1: | 5.4% |
| Leader2: | Gerhard Bökel |
| Party2: | Social Democratic Party of Germany |
| Seats2: | 33 |
| Seat Change2: | 13 |
| Popular Vote2: | 795,576 |
| Percentage2: | 29.1% |
| Swing2: | 10.3% |
| Leader4: | Tarek Al-Wazir |
| Party4: | Alliance 90/The Greens |
| Last Election4: | 8 seats, 7.2% |
| Seats4: | 12 |
| Seat Change4: | 4 |
| Popular Vote4: | 276,276 |
| Percentage4: | 10.1% |
| Swing4: | 2.9% |
| Leader5: | Ruth Wagner |
| Party5: | Free Democratic Party (Germany) |
| Last Election5: | 6 seats, 5.1% |
| Seats5: | 9 |
| Seat Change5: | 3 |
| Popular Vote5: | 216,110 |
| Percentage5: | 7.9% |
| Swing5: | 2.8% |
| Map Size: | 250px |
| Minister-President | |
| Before Election: | Roland Koch |
| Before Party: | Christian Democratic Union of Germany |
| After Election: | Roland Koch |
| After Party: | Christian Democratic Union of Germany |
The 2003 Hessian state election was held on 2 February 2003 to elect the members of the Landtag of Hesse. The incumbent coalition government of the Christian Democratic Union (CDU) and Free Democratic Party (FDP) led by Minister-President Roland Koch was returned with an increased majority. The CDU recorded a 5.4% swing in its favour, winning an absolute majority of seats. It subsequently formed government alone, with Roland Koch continuing in office.
The table below lists parties represented in the previous Landtag of Hesse.
| Name | Ideology | Leader(s) | 1999 result | |||||
|---|---|---|---|---|---|---|---|---|
| Votes (%) | Seats | |||||||
| bgcolor= | CDU | Christian Democratic Union of Germany | Christian democracy | Roland Koch | 43.4% | |||
| bgcolor= | SPD | Social Democratic Party of Germany | Social democracy | Gerhard Bökel | 39.4% | |||
| bgcolor= | Grüne | Alliance 90/The Greens | Green politics | Evelin Schönhut-Keil Tarek Al-Wazir | 7.2% | |||
| bgcolor= | FDP | Free Democratic Party | Classical liberalism | Ruth Wagner | 5.1% | |||
| Polling firm | Fieldwork date | Sample size | CDU | SPD | Grüne | FDP | Others | Lead | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2003 state election | data-sort-value="2003-02-02" | 2 February 2003 | – | 48.8 | 29.1 | 10.1 | 7.9 | 4.1 | 19.7 | |
| Forsa | data-sort-value="2003-01-31" | 31 Jan 2003 | ? | 49 | 29 | 11 | 8 | 3 | 20 | |
| Forsa | data-sort-value="2003-01-29" | 20–24 Jan 2003 | 1,012 | 51 | 29 | 10 | 7 | 3 | 22 | |
| Forsa | data-sort-value="2003-01-22" | 13–18 Jan 2003 | 1,078 | 50 | 31 | 10 | 5 | 4 | 19 | |
| Infratest dimap | data-sort-value="2003-01-19" | 16–19 Jan 2003 | 1,000 | 48 | 31 | 11 | 7 | 3 | 17 | |
| Forschungsgruppe Wahlen | data-sort-value="2003-01-17" | 13–16 Jan 2003 | 1,036 | 48 | 32 | 10 | 7 | 3 | 16 | |
| Forsa | data-sort-value="2003-01-15" | 6–10 Jan 2003 | 1,003 | 48 | 33 | 10 | 5 | 4 | 15 | |
| Infratest dimap | data-sort-value="2003-01-09" | 2–7 Jan 2003 | 1,000 | 47 | 33 | 10 | 5 | 5 | 14 | |
| Forsa | data-sort-value="2003-01-07" | 27 Dec–3 Jan 2003 | 1,120 | 47 | 32 | 12 | 5 | 4 | 15 | |
| Infratest dimap | data-sort-value="2002-06-12" | 2–4 Dec 2002 | 1,000 | 49 | 32 | 11 | 5 | 3 | 17 | |
| dimap | data-sort-value="2002-05-13" | 13 May 2002 | ? | 45 | 35 | 6 | 9 | 5 | 10 | |
| Forsa | data-sort-value="2001-01-18" | 18 Jan 2001 | ? | 40 | 39 | 8 | 7 | 6 | 1 | |
| Infratest dimap | data-sort-value="2000-02-04" | 28–31 Jan 2000 | 1,000 | 35 | 44 | 9 | 7 | 5 | 9 | |
| Ipos | data-sort-value="2000-01-24" | 19–21 Jan 2000 | 1,004 | 33 | 46 | 11 | 5 | 5 | 13 | |
| 1999 state election | data-sort-value="1999-02-07" | 7 February 1999 | – | 43.4 | 39.4 | 7.2 | 5.1 | 4.9 | 4.0 |
|-! rowspan=2 colspan=2| Party! colspan=3| Constituency! colspan=4| Party list! rowspan=2| Total
seats! rowspan=2| +/-|-! Votes! %! Seats ! Votes! %! +/-! Seats|-| bgcolor=| | align=left| Christian Democratic Union (CDU)| 1,411,800| 51.99| 53| 1,333,863| 48.77| 5.36| 3| 56| 6|-| bgcolor=| | align=left| Social Democratic Party (SPD)| 898,813| 33.10| 2| 795,576| 29.09| 10.28| 31| 33| 13|-| bgcolor=| | align=left| Alliance 90/The Greens (GRÜNE)| 230,261| 8.48| 0| 276,276| 10.10| 2.92| 12| 12| 4|-| bgcolor=| | align=left| Free Democratic Party (FDP)| 148,632| 5.47| 0| 216,110| 7.90| 2.80| 9| 9| 3|-! colspan="11" ||-| bgcolor=| | align=left| The Republicans (REP)| 7,025| 0.26| 0| 34,563| 1.26| 1.42| 0| 0| 0|-| bgcolor=| | align=left| Human Environment Animal Protection Party (Tierschutz)| 4,815| 0.18| 0| 20,600| 0.75| 0.29| 0| 0| 0|-| | align=left| Airport Expansion Opponents (FAG)| colspan=3| –| 17,736| 0.65| New| 0| 0| New|-| bgcolor=| | align=left| Party for a Rule of Law Offensive (SCHILL)| 3,074| 0.11| 0| 14,545| 0.53| New| 0| 0| New|-| bgcolor=| | align=left| Feminist Party of Germany (FRAUEN)| 1,090| 0.04| 0| 7,506| 0.27| 0.04| 0| 0| 0|-| bgcolor=| | align=left| Party of Bible-abiding Christians (PBC)| 1,465| 0.05| 0| 6,674| 0.24| 0.07| 0| 0| 0|-| bgcolor=| | align=left| German Communist Party (DKP)| 2,552| 0.09| 0| 5,908| 0.22| 0.08| 0| 0| 0|-| bgcolor=| | align=left| Ecological Democratic Party (ÖDP)| 378| 0.01| 0| 2,683| 0.10| 0.02| 0| 0| 0|-| bgcolor=| | align=left| Civil Rights Movement Soliarity (BüSo)| 873| 0.03| 0| 1,643| 0.06| 0.04| 0| 0| 0|-| bgcolor=| | align=left| Socialist Equality Party (PSG)| colspan=3| –| 1,309| 0.05| New| 0| 0| New|-| bgcolor=| | align=left| Socialist Alternative (SAV)| 356| 0.01| 0| colspan=4| –| 0| New|-| bgcolor=| | align=left| Independents| 4,555| 0.17| 0| colspan=4| –| 0| 0|-! colspan=2| Total! 2,715,689! 100.00! 55! 2,734,992! 100.00! ! 55! 110! 0|-| colspan=2 align=center| Invalid| 82,845| 2.96| | 63,542| 2.27| colspan=4| |-! colspan=2| Turnout! 2,798,534! 64.62! ! 2,798,534! 64.62! 1.83! colspan=4| |-| colspan=2 align=center| Registered voters| 4,330,792| colspan=2| | 4,330,792| colspan=5| |}