Apian or Apianus may refer to:
People Apian or Aphian, Catholic and Eastern Orthodox saint Peter Apian or Petrus Apianus, as well as Peter Bienewitz or Bennewitz, (1495-1552), German humanist Philipp Apian, also Philipp Apianus, (1531-1589), German mathematician, physician and cartographer (son of Peter, brother of Timotheus Apian) Paul Otto Apian-Bennewitz, (1847-1892), organist and teacher, founder of the Museum of Musical Instruments in Markneukirchen
Other Apian-Gymnasium Ingolstadt, secondary school in Ingolstadt, Germany, named after Peter and Philipp Apian 19139 Apian, asteroid named after Peter Apian Apianus (crater), (26° 9' S and 7° 9' E) on the Moon named after Peter Apian
See also Apidae or apids, the bees Appian (disambiguation)