Gregor Schlierenzauer was born on 7 January 1990 in Innsbruck, Tyrol, to Paul and Angelika Schlierenzauer. The second of three children, he has an older sister, Gloria, and a younger brother, Lukas. His uncle is Markus Prock, the winner of three Winter Olympic medals in men's luge, who settled him a contract with Fischer Skis in 2001 and a few years later with Red Bull. Schlierenzauer has been deaf in his left ear since birth. He is also the cousin of luger Hannah Prock.