Hosta

Hilarianus or Hilarian may refer to:

People

Publius Aelius Hilarianus (2nd century), Roman politician, probably the governor in the Passion of Saints Perpetua and Felicity
Furius Hilarianus [de] (2nd century), Roman military commander
Mecilius Hilarianus (fl. 316–354), prefect of Rome and praetorian prefect of Italy
Decimus Hilarianus Hilarius [ca] (fl. 377–396), prefect of Rome and praetorian prefect of Italy
Decimius Hilarianus Hesperius (4th century), Roman politician
Caelius Hilarianus (fl. 377), Roman senator and priest
Hilarianus (magister officiorum) (fl. 470)
Quintus Julius Hilarianus (fl. 397), Roman historian and millenarian writer
Hilarian of Espalion [fr] (d. 793), Catholic priest purportedly martyred by the Saracens