Hellanicus

Hellanicus or Hellanikos (Ἑλλάνικος) may refer to:


 * Hellanicus of Lesbos (5th century BC), Greek logographer
 * Hellanicus (grammarian) (3rd century BC), Greek grammarian; see Chorizontes
 * Hellanicus (mythology), one of the suitors of Penelope
 * Hellanicus of Miletus, ancient Greek historian
 * Hellanicus, supposed author of the Hieronyman Theogony