Liberius may refer to:
Liberius of Ravenna (d. 200), Bishop of Ravenna and saint Pope Liberius (died 366), Bishop of Rome Liberius (praetorian prefect) (c. 465 – c. 554), Roman government administrator Oliver of Ancona or Liberius (died c. 1050), immigrant religious leader in Italy Liberius, a character in Doctor Zhivago
See also Liberalis (disambiguation)