Jahn
Jahn (Jähn) is a German surname. Notable people with this surname include the following:
- Erich Jahn (1907– ?), Hitler Youth leader
- Friedrich Ludwig Jahn (1778 – 1852), German educator
- Gunnar Jahn (1883 – 1971), Norwegian politician and resistance member
- Gunter Jahn (1910 – 1992), German U-boat commander
- Helmut Jahn (born 1940), German-American architect
- Hermann Arthur Jahn (1907 – 1979), British scientist
- Jan Jahn (1739 – 1802), Czech painter and art historian
- Jeff Jahn (born 1970), American artist and critic
- Johann Jahn (1750 – 1816), German Orientalist
- Kurt Jahn (1892 – 1966), German general
- Martin Jahn (born 1970), Czech economist and politician
- Joseph Michael Jahn (born 1943), American author and critic
- Oliver Jahn, German film director, screenwriter, producer and actor
- Otto Jahn (1813 – 1869), German archaeologist, philologist, and writer on art and music
- Robert G. Jahn (born 1930), American scientist, electrical engineer, and psychic investigator
- Ryan David Jahn (born 1979), American novelist and screenwriter
- Sigmund Jähn (born 1937), German astronaut
- Thomas Jahn (born 1965), German film and television director
- Wilhelm Jahn (1835 – 1900), Austro-Hungarian orchestral conductor
- Wilhelm Jahn (athlete) (1889 – 1973), German athlete, leader of the Wandervogel youth movement, folksong composer, publisher, WWII army officer