Toni Kurz was born on 13 January 1913 in Berchtesgaden, Bavaria, Germany, where he was raised. He completed a brief apprenticeship as a pipefitter before joining the German Wehrmacht in 1934 as a professional soldier. Together with his childhood friend Andreas Hinterstoisser, he made numerous first ascents of peaks in the Berchtesgaden Alps, including some of the most difficult climbs of that time. The two young men climbed the southwest wall of the Berchtesgadener Hochthron in 1934, and the south wall of the straight pillar in 1936. They also made first ascents in the Reiter Alpe on the German-Austrian border, and of the direct southern route up the Watzmannkinder in the Watzmann in 1935.