Marek Holeček is a Czech mountaineer, explorer, author and documentary filmmaker. Holeček has received the 2018 Piolet d'Or award for his successful full ascent on the southwest face of Gasherbrum I with Zdeněk Hák, which he achieved in Alpine style.

The Piolets d'Or is an annual mountaineering and alpine climbing award organized by the Groupe de Haute Montagne (GHM), and previously with co-founder Montagnes Magazine, since its founding in 1992. Golden ice axes are presented to the annual winners at a weekend awards festival based on their achievements in the previous year. It is considered mountaineering's highest honor and is referred to as the "Oscars of mountaineering".