The name Hiero means Holy and is of Greek origin. Hiero is a name that's been used primarily by parents who are considering baby names for boys.
People who like the name Hiero also like the names: Evander,
Alastair,
Finn,
Rhys,
Xander,
Andreas,
Abel,
Aiko,
Andromeda,
Adora,
Antonina,
Aria,
Genevieve,
Arabella