Daniel Mandl (April 20, 1891 – March 23, 1945) was a civil engineer, inventor, and a student of anthroposophy.
During World War I, he commanded an artillery unit of the Austro-Hungarian Army, and fought in Albania.
After the annexation of rump Czechoslovakia by Nazi Germany on March 15, 1939, Mandl held a teaching position in the Technical School founded by the Brno Jewish community.
He was deported from Brno to the Terezin (Theresienstadt ghetto on March 31, 1942, together with his wife Hajnalka and his son Tommy (Herbert Thomas Mandl).
[1] He participated in the Jewish cultural life in the ghetto, delivering at least one lecture, titled "A Chapter from Some Thoughts On the History of Humanity," on June 23, 1944.