Karl Unterkircher, Italian mountaineer (d. 2008)
Karl Unterkircher (27 August 1970 – 15 July 2008) was an Italian mountaineer. He is mostly known for opening new mountain routes.

Unterkircher was born in Sëlva. In 2004, he was the first alpinist to climb the two highest peaks on Earth (Mount Everest and K2) without oxygen in the same year (within 63 days) he made the second ascent of Mount Genyen, China, (first ascent by Japanese in 1987) and the first ascent of the North face of Gasherbrum II (together with Daniele Bernasconi and Michele Compagnoni). He also climbed the Jasemba, Nepal, (together with Hans Kammerlander). He received several awards including the Cavaliere Ordine al Merito della Repubblica Italiana.

On 15 July 2008 he fell into a crevasse during an attempt to open a new route to the top of Himalayan mountain Nanga Parbat and is presumed dead. "Karl Unterkircher was the new star of mountain climbing", commented Reinhold Messner when told of his death.