Ammerschlucht, Natural canyon in Garmisch-Partenkirchen, Germany.

Ammerschlucht, also called Ammerleite, is the gorge of the Ammer river in Bavaria. It begins at the Scheibum rock breakthrough west of Saulgrub, runs about twelve kilometres north to Peiting, then turns east for about six kilometres to Peißenberg. Only the Scheibum section is rocky; the steep slopes elsewhere are mostly forested with spruce, sycamore, elm, ash, fir and yew.

The Ammer once flowed east over the Ettaler Sattel to the Loisach. About 120,000 years ago, during the Eemian interglacial between the Riss and Würm glaciations, it shifted north, cutting into moraines of earlier cold periods and the subalpine Molasse. This created the gorge, which runs from the Scheibum rock breakthrough near Saulgrub north to Peiting and then east to Peißenberg.

The Scheibum is the rock breakthrough where the gorge begins, west of Saulgrub. In the east-west stretch the Via Romea, the pre-alpine Way of St. James from Salzburg and the König-Ludwig-Weg run through the valley, and the Ammer-Amper cycle path follows it. The Ammer is a popular kayak and canoe route, with the Scheibum–Rottenbuch section rated medium-difficulty whitewater.

Only the north-flowing stretch has almost no hiking trails, apart from a section of the Via Romea. The east-west stretch carries a section of the pre-alpine Way of St. James, which meets the Munich-Lindau route and coincides with the King Ludwig Way; the Ammer-Amper cycle path also runs here. Boaters may run the river from 1 May to 15 October, and only when the Peißenberg gauge reads at least 6 m³/s; landing on banks, islands and gravel bars is forbidden except at marked spots.

The Scheibum rock breakthrough west of Saulgrub marks the start of the gorge at river kilometre 169; the Schleierfälle and a tuff cave southeast of Wildsteig are listed separately as geotope 190R046. The Ammer's upper section between Scheibum and Rottenbuch drops about 107 metres over roughly 12 kilometres, with cataracts, steps and rapids.