1955 Rhineland-Palatinate state election

The 1955 Rhineland-Palatinate state election was conducted on 15 May 1955 to elect members to the Landtag, the state legislature of Rhineland-Palatinate, West Germany.

! style="background-color:#E9E9E9;text-align:left;" width=300px colspan=2|Party ! style="background-color:#E9E9E9;text-align:right;" width=50px |Vote % ! style="background-color:#E9E9E9;text-align:right;" width=50px |Vote % ± ! style="background-color:#E9E9E9;text-align:right;" width=50px |Seats ! style="background-color:#E9E9E9;text-align:right;" width=50px |Seats ± ! style="text-align:left;" colspan=2| Total
 * colspan=15| RP_Landtagswahl_1955.svg
 * colspan=15| RP_Landtagswahl_1955.svg
 * width=5px style="background-color: " |
 * style="text-align:left;" | Christian Democratic Union
 * style="text-align:right;" | 46.8
 * style="text-align:right;" | +7.6
 * style="text-align:right;" | 51
 * style="text-align:right;" | +8
 * style="background-color: " |
 * style="text-align:left;" | Social Democratic Party
 * style="text-align:right;" | 31.7
 * style="text-align:right;" | –2.3
 * style="text-align:right;" | 36
 * style="text-align:right;" | –2
 * style="background-color: " |
 * style="text-align:left;" | Free Democratic Party
 * style="text-align:right;" | 12.7
 * style="text-align:right;" | –4.2
 * style="text-align:right;" | 13
 * style="text-align:right;" | –6
 * style="background-color: " |
 * style="text-align:left;" | Communist Party of Germany
 * style="text-align:right;" | 3.2
 * style="text-align:right;" | –1.1
 * style="text-align:right;" | 0
 * style="text-align:right;" | ±0
 * style="background-color: " |
 * style="text-align:left;" | Others
 * style="text-align:right;" | 5.6
 * style="text-align:right;" | +0.3
 * style="text-align:right;" | 0
 * style="text-align:right;" | ±0
 * - style="background: #E9E9E9"
 * style="text-align:right;" | 5.6
 * style="text-align:right;" | +0.3
 * style="text-align:right;" | 0
 * style="text-align:right;" | ±0
 * - style="background: #E9E9E9"
 * 100.0
 * 100
 * ±0
 * colspan=9 style="text-align:left;" | Source: parties-and-elections.de
 * }
 * colspan=9 style="text-align:left;" | Source: parties-and-elections.de
 * }