Röthbach Waterfall, Tallest waterfall in Berchtesgaden, Germany.

Röthbach Waterfall drops in two main stages over the Röthwand, a near-vertical rock face at the southern end of the Königssee valley. The upper stage begins at 1,250 metres and falls about 240 metres; the lower stage adds 50 metres to the torrent section at 870 metres. The narrow white fall breaks into several tiers against dark grey stone and disappears among trees at the wooded base.

The Röthbachfall lies at the southern end of the Königssee valley, below the Röth, where the Röthbach drops over the Röthwand in two main stages. Its height is usually given as about 470 metres, counting the torrent section below; the Alpine Club map shows at least 350 metres and a site visit gave 380 metres. The upper stage starts at 1250 metres and falls 240 metres, the lower one 50 metres to the torrent at 870 metres, which makes it Germany's highest waterfall, just ahead of the Landtalfall 700 metres to the north.

The name Röthbach comes from the stream that feeds the fall, which rises below the Röth and pours over the Röthwand. At the foot of the valley end lies the Fischunkel, a peaty alpine meadow where the water seeps into loose scree and continues underground to the Obersee. Only during snowmelt does a small lake form there. Hikers pass the Fischunkelalm on the way from Salet.

The route to the waterfall involves a boat trip on Lake Königssee to Salet, followed by a walk around Lake Obersee. The best viewing conditions occur on sunny days between spring and autumn.

The Röthbach's water does not reach the Obersee above ground: it seeps through the peaty soil of the Fischunkel basin into loose scree and feeds the lake as an underground groundwater flow. Only during heavy snowmelt does a small temporary lake form in the basin. The Triberg Waterfalls, often wrongly called Germany's highest, drop just 163 metres.