Markus Kronthaler (5 April 1967 – 8 July 2006) was an Austrian gendarme and mountaineer.

He was an officer in the alpine section of Austria's Gendarmerie, which he left in 2003 to become a professional climber.

Surviving a free fall of 150 meters (450 ft) into snow in January 2006, Kronthaler led a new expedition to Chogolisa and Broad Peak, Pakistan, in May 2006.

He died of exhaustion on Broad Peak after reaching the summit on 8 July.

In the summer of 2007, an Austrian mountaineering team climbed Broad Peak to retrieve Kronthaler's corpse, which was brought to Austria and cremated.