Zimmern ob Rottweil is a municipality situated in the district of Rottweil within the state of Baden-Württemberg, Germany. The administrative area comprises several distinct localities, including the former independent municipalities of Zimmern ob Rottweil, Flözlingen, Horgen, and Stetten ob Rottweil.
The geography of the municipality is defined by its position on a plateau overlooking the upper Neckar valley. While the village of Zimmern sits on this elevated terrain, the villages of Horgen, Stetten, and Flözlingen are located in the adjacent Eschach valley.