Ludwigshöhe, Summit in the Monte Rosa massif, on the Swiss-Italian border

Ludwigshöhe is a 4,341 m summit in the Monte Rosa massif on the Swiss-Italian border, the southernmost four-thousander in Switzerland. Its Swiss side is gentle and snow-covered, while the Italian side drops steeply toward Alagna Valsesia as part of the Valsesian wall of Monte Rosa. A side ridge runs south from the peak toward the Vincent Pyramid.

Ludwig von Welden, an Austrian military topographer, made the first ascent on 25 August 1822 with companions, reaching the summit for surveying work. The climb drew little notice at the time, but the peak was later named after him. Other sources hold that Welden instead honoured King Louis IX of France, who died on 25 August 1270.

The mountain received its name from Saint Louis IX of France, whose feast day coincided with the first recorded climb of the summit.

The normal route starts at Colle del Lys and finishes on an exposed snow ridge, so rope up and carry crampons and an ice axe. The Swiss flank is gentle and snow-covered, while the Italian side drops steeply toward Alagna Valsesia. A guide is advisable for the final crest.

The summit marks the tripoint where the canton of Valais meets the Aosta Valley and Piedmont, making it the southernmost four-thousander in Switzerland. A side ridge runs south from the peak over the Schwarzhorn to the Vincent Pyramid, separating the Gressoney valley from the Valsesia.