The 1999 Saarland state election was held on 5 September 1999 to elect the members of the Landtag of Saarland. The incumbent Social Democratic Party (SPD) government led by Minister-President Reinhard Klimmt was defeated. The Christian Democratic Union (CDU) won a narrow majority of one seat. CDU leader Peter Müller was subsequently elected minister-president.
The table below lists parties represented in the previous Landtag of Saarland.
|- | colspan=8 | |- ! colspan="2" | Party ! Votes ! % ! +/- ! Seats ! +/- ! Seats % |- | bgcolor=| | align=left | Christian Democratic Union (CDU) | align=right| 253,856 | align=right| 45.5 | align=right| 6.9 | align=right| 26 | align=right| 5 | align=right| 51.0 |- | bgcolor=| | align=left | Social Democratic Party (SPD) | align=right| 247,311 | align=right| 44.4 | align=right| 5.0 | align=right| 25 | align=right| 2 | align=right| 49.0 |- ! colspan=8| |- | bgcolor=| | align=left | Alliance 90/The Greens (Grüne) | align=right| 18,106 | align=right| 3.2 | align=right| 2.3 | align=right| 0 | align=right| 3 | align=right| 0 |- | bgcolor=| | align=left | Free Democratic Party (FDP) | align=right| 14,259 | align=right| 2.6 | align=right| 0.5 | align=right| 0 | align=right| ñ0 | align=right| 0 |- | bgcolor=| | align=left | Others | align=right| 23,805 | align=right| 4.2 | align=right| | align=right| 0 | align=right| ñ0 | align=right| 0 |- ! align=right colspan=2| Total ! align=right| 557,337 ! align=right| 100.0 ! align=right| ! align=right| 51 ! align=right| ñ0 ! align=right| |- ! align=right colspan=2| Voter turnout ! align=right| ! align=right| 68.7 ! align=right| 14.8 ! align=right| ! align=right| ! align=right|