Strahlkogel, Alpine summit in Umhausen, Austria.

Strahlkogel is the highest peak of the Larstiger Mountains, a subgroup of the Stubai Alps, rising 3,288 m above sea level in the municipality of Umhausen. It forms a regular, steep and pointed pyramid, surrounded to the east by the crevassed Larstigferner and to the south by the broad Grasstallferner. White quartz layers on its flanks reflect the light and give the mountain its name.

Peter Carl Thurwieser made the first ascent in 1833, though his route and the circumstances were not recorded. On 28 August 1887 Ludwig Purtscheller and Fritz Drasch from Salzburg climbed via the west arête, which remains the normal route today. A summit cross of galvanised steel was carried up by young climbers from Umhausen in 1967 and repaired and re-erected in 2017.

The name Strahlkogel refers to the white quartz layers that allegedly make the mountain radiate light. Since 10 October 1967 a summit cross has stood on the highest point; young climbers from Umhausen carried the galvanised steel parts up over four days. The cross was consecrated on 29 September 1968 by Pastor Otto Gleinser, and a summit book was installed, with completed volumes archived in Umhausen's chronicle.

Hikers typically begin from Niederthai village and follow trails leading toward Grasstallsee before crossing into glacier terrain. The route requires mountaineering experience and proper equipment for glacier travel.

A steel summit cross has stood on the highest point since 10 October 1967, when young climbers from Umhausen carried the parts up over four days. It was consecrated on 29 September 1968 by Pfarrer Otto Gleinser, and in 2017 eight men from Umhausen re-erected it after ground settlement had tilted it.