Hahn

Hahn is a German surname and toponym. The name derives from the German word for a rooster and is widely found in German-speaking regions. As a surname it appears across various fields, including science, arts, and public life, and it is used for several places in Germany.

Notable individuals with the surname include Otto Hahn, a German chemist whose work with Fritz Strassmann led to the discovery of nuclear fission; he received the Nobel Prize in Chemistry in 1944 for this achievement. Hans Hahn was an Austrian-born German mathematician and logician who contributed to functional analysis; the Hahn–Banach theorem in functional analysis bears his name. The Hahn surname has appeared among other scientists, diplomats, and artists, reflecting its broad geographic and professional distribution.

Geography and transportation: Frankfurt-Hahn Airport is a major civilian airport in Rhineland-Palatinate, Germany, located near the town of Hahn. The name Hahn also appears as a toponym for several towns and villages in Germany, reinforcing its role as both a surname and a place name.

Other uses: In German, Hahn literally means rooster, a meaning that underpins its use as a common noun, a family name, and a component in various institutional and mathematical names. The surname remains common in German-speaking communities and among the descendants of those communities worldwide.