Guido Holzknecht (3 December 1872 – 30 October 1931) was an Austrian radiologist who was a native of Vienna. He studied in Strasbourg, Königsberg, and Vienna, and became the director of the X-ray laboratory at Vienna General Hospital in 1905 . He later established a central radiology department at the hospital, which became known as the Guido Holzknecht Institute. With radiologist Robert Kienböck (1871–1953), he was a co-founder of the Wiener Röntgengesellschaft (Vienna Radiology Society). The statue of Holzknecht in Arne Carlsson Park was originally made by Josef Josephu. Damaged during the S