Clarius

Clarius can refer to:


 * Apollo, Greek and Roman God
 * also known as Apollo Clarius, see Clarus
 * Clarius, a small stream in Cyprus which ran near the town of Aepeia (Cyprus).
 * Clarius also means "more brightly" in Latin
 * Clarius or Pseudo-Clarius, monk once thought to be the author of the Chronicle of Saint-Pierre-le-Vif of Sens
 * Isidorus Clarius, religious scholar
 * Birgit Clarius, German heptathlete
 * Clarius, a planet in the Clyph star system of the Milky Way Galaxy in the Marvel Universe (see Features of the Marvel Universe)