Hans Kreissig (May 23, 1857 – December 28, 1929) was a German-born American pianist, music teacher, and conductor.
His early musical training was in Germany; this was followed by several years studying composition and conducting with Arthur Sullivan in London.
In addition to the Frohsinn, Kreissig organized and conducted a number of band and orchestra concerts in the 1880s and 1890s, and he later founded the Beethoven Trio and the Phoenix Club (a chamber ensemble).
Although the DSO has since evolved in numerous fundamental ways, including temporary name changes and several multiyear periods of dormancy, the present organization still traces its origins to Kreissig's 1900 ensemble, as it is stated in the notes accompanying DSO 100, a commemorative CD issued by the Dallas Symphony in 2000.
Kreissig married Louise Cretien (1870–1960), a native of the Texas French settlement La Reunion, in 1893.