Zahn is a German and Ashkenazi Jewish surname. Notable persons with the surname include:
- Albert Zahn (1864âÂÂ1953), folk artist from Wisconsin, decorated the Albert Zahn House with carvings.
- Anthony Zahn (born 1974), American cyclist
- Ernst Zahn (1867âÂÂ1952), Swiss writer
- Friedrich Wilhelm Zahn (1845âÂÂ1904), German pathologist
- Geoff Zahn (born 1945), American baseball player
- Gordon Zahn (1918âÂÂ2007), American sociologist and pacifist
- Helmut Zahn (1916âÂÂ2004), German chemist
- Joachim Zahn (1914âÂÂ2002), German automotive executive
- Johann Zahn (1641âÂÂ1707), German canon who wrote on the camera obscura and who invented an early camera
- Johannes Zahn (1817âÂÂ1895), German musicologist and theologian who developed a taxonomy of Lutheran hymns and melodies
- Karl Hermann Zahn (1865âÂÂ1940), German botanist
- Margaret A. Zahn, American sociologist and criminologist
- Markus Zahn, (1946-2022) American professor of Electrical engineering
- Otto J. Zahn (1872âÂÂ1965), American politician
- Paula Zahn (born 1956), American newscaster
- Peter von Zahn, (1913âÂÂ2001), German author, filmmaker, and journalist
- Robert Zahn (1861âÂÂ1914), German engineer and industrialist
- Robert Zahn (1870âÂÂ1945), German classical archaeologist
- Shammai Zahn (1920âÂÂ2001), British rabbi
- Steve Zahn (born 1967), American actor
- Theodor Zahn (1838âÂÂ1933), German biblical scholar
- Timothy Zahn (born 1951), American science fiction novelist
- Uwe Zahn (born 1965), German electronic artist
- Wilhelm Zahn (1910âÂÂ1976) German U-boat commander
- Wilhelm Johann Karl Zahn (1800âÂÂ1871), German architect, painter and art critic
See also
- Lines of Zahn, a layered thrombus formed at the site of rapid blood flow
- Zohn, a surname