Haeckel (disambiguation)

Haeckel or Häckel can refer to:

People

 * Ernst Haeckel (1834–1919), German biologist, naturalist, philosopher, physician, professor and artist
 * František Häckel, Czechoslovakian cross country skier
 * Stephan H. Haeckel (born 1936), American management theorist who developed the idea of the sense-and-respond organization

Science

 * 12323 Haeckel, a minor planet named after Ernst Haeckel
 * Haeckel's Law, a version of the Recapitulation theory in biology