Büchner (or Buechner) is a German language surname related to the word Buche (German: beech) and may refer to:
Georg Büchner (1813-1837), German writer and playwright
Ludwig Büchner (1824-1899), German philosopher
Ernst Büchner (1850–1925), German chemist after whom the Büchner flask and Büchner funnel are named
Joachim Büchner (1905-1978), German athlete
Eberhard Büchner (born 1939), German tenor
Wolfgang Büchner , German slalom canoeist
Wolfgang Büchner (journalist) (born 1966), German journalist
In the anglicized spelling "Buechner", it may refer to:
Frederick Buechner (1926- ), American author and minister
Margaret Buechner (1922-1998), a German-born, American composer
