The Eckbachweiher in the Palatine Leiningerland in the German state of Rhineland-Palatinate is a woog on the Eckbach stream.

The Eckbachweiher lies in the northeast of the Palatinate Forest at a height of about 180 metres in the parish of Neuleiningen-Tal, which belongs to the collective municipality of Grünstadt-Land.

The lake runs in a southwest to northwest direction south of and parallel to the road up the valley, which is identical with the Landesstraße 520 from Carlsberg to Kleinkarlbach).

As a result, the Eckbach valley was better protected from flooding, which could occur especially in spring after heavy winter snows.

Some two kilometres east of the lake, left and right above the exit to the Eckbach valley into the Upper Rhine Plain lie on two foothills of the Haardt the castles of Neuleiningen and Battenberg, which used to belong to the House of Leiningen and guarded the entrance to the valley.