Friedrich Hefty (13 December 1894 – 20 January 1965), also referred to as Frigyes Hefty, was a World War I Austro-Hungarian flying ace credited with five confirmed and five unconfirmed aerial victories. His early interest in aviation led him to drop out of school in 1913 and become a glider pilot. When World War I began, he served first as an aerial observer, then as a pilot. He scored his first aerial victory as an observer, on 7 October 1915. Once he became a pilot, he claimed nine other victories, four of which were verified. On 22 August 1918, he became one of the first combat pilots to bail out using a parachute. Hefty ended the war with ten awards of the Medal for Bravery.