| Persailhorn | |
| Elevation M: | 2347 |
| Location: | Salzburg, Austria |
| Range: | Alps, Berchtesgaden Alps |
| Map: | Austria |
| Coordinates: | 47.4599°N 12.8911°W |
| First Ascent: | Heinrich Hess and Ludwig Purtscheller, June 12, 1887 |
| Easiest Route: | alpine hike or Via Ferrata from Wiechenthaler Hut |
Persailhorn (elevation 2347m (7,700feet)) is a summit in the Steinernes Meer of the Berchtesgaden Alps in the Austrian state of Salzburg.
The Persailhorn is a prominent rocky summit above the valley of Saalfelden and above the lower Kienalkopf, where also the closest shelter, the Peter-Wiechenthaler hut is located. The next summit to the west is Mitterhorn. There are two Via Ferrata B-C and an alpine hiking path from the hut that all lead in approximately 2 hours to the summit. Another alpine path, the Saalfeldener Höhenweg, leads over Mitterhorn and Breithorn to the hut Riemannhaus.