Kreuzeck, Mountain summit in Bavaria, Germany and Tyrol, Austria.

Kreuzeck is a 2,376-metre subpeak of the unnamed P. 2379 in the Allgäu Alps, about 400 metres north of it, near Oberstdorf. It belongs to the grass mountains of the Rauheck group and, with the Kegelkopf, separates the Dietersbach valley from the Traufbach valley. The Kemptner Hütte to Prinz-Luitpold-Haus high trail crosses it along the Bavaria-Tyrol border.

This peak sits on a boundary that developed over centuries between the Bavarian and Tyrolean regions, each maintaining distinct governance and heritage. The border location made the mountain itself a meeting point of two separate Alpine traditions.

The Kreuzeck lies on the Höhenweg between the Kemptner Hütte and the Prinz-Luitpold-Haus, a long-distance route that runs along the Bavarian-Tyrolean border here. Walkers on this stretch cross between Germany and Austria without any formal crossing point, and the trail is the main way the peak is experienced today. The name appears in two forms: Kreuzeck in German and Kreuzegg in Austrian usage.

Multiple marked hiking trails approach the summit from both sides of the border, with summer months from June through September offering the most stable conditions. Visitors should bring mountain gear and prepare for changing weather at altitude.

On clear days the summit offers views of the Zugspitze, Germany's highest mountain, visible from across the border. This sight links two different mountain regions visually from a single vantage point.