title: Constantine the Philosopher
text: Constantine the Philosopher may refer to:
  
   Cyril, born Constantine, of Saints Cyril and Methodius, 9th-century Byzantine scholar born in Thessaloniki
   Constantine of Nicaea, 12th-century Byzantine philosopher
   Constantine of Kostenets (died after 1431), Bulgarian historian and biographer of Stefan Lazarević
  
  ru:Константин Философ