Apian or Apianus, also Apian-Bennewitz, seldom Apian von Bennewitz, pretty seldom Apianus von Bennewitz is the name of a German noble family, whereby Apian is the Germanised form of the name once Latinised from Bienewitz and/or Bennewitz to Apianus.
- Peter Apian, also Peter or Petrus Apianus as well as Peter Bienewitz or Bennewitz, (1495-1552), German humanist (brother of Georg and father of Philipp Apian)
- Georg Apian, also Georg Apianus as well as Georg Bienewitz or Bennewitz, German printer and publisher of the 16th century (brother of Peter Apian)
- Philipp Apian, also Philipp Apianus, (1531-1589), German mathematician, physician and cartographer (son of Peter and brother of Timotheus Apian)
- Timotheus Apian, (?-1562), German land surveyor of the 16th century (son of Peter and brother of Philipp Apian)
- Paul Otto Apian-Bennewitz, (1847-1892), organist and teacher, founder of the Museum of Musical Instruments in Markneukirchen, Germany