The 1958–59 Rheinlandliga was the seventh season of the highest amateur class of the Rhineland Football Association under the name of 1.
Beginning in the 1974–75 season, the league played a role as a sub-team to the newly introduced 2.
Division Southwest, Metternich unsuccessfully landed in last place and had to continue to play in the Amateurliga.
Amateur League were: VfL Trier came as relegated team down from the II.
SSV Heimbach-Weis and Eintracht Höhr-Grenzhausen switched from the West to the East Division after this season.