Friedrich Dietz von Weidenberg (27 October 1871 – 9 December 1941) was an Austrian architect^[1] and sports shooter. He competed in the team clay pigeon event at the 1924 Summer Olympics.^[2][3]

As an architect he built mostly in his home district of Floridsdorf. His most important works are from the time between 1900 and 1910, like the Weissel-Bad (a former public bath, the façade is now part of a housing complex) and a villa that now houses the district museum (listed as cultural heritage monuments).