The name Cillian means Little Cell and is of Irish origin. Cillian is a name that's been used primarily by parents who are considering baby names for boys.
People who like the name Cillian also like the names: Declan,
Ronan,
Ciaran,
Archer,
Oliver,
Liam,
Soren,
Maeve,
Evangeline,
Violet,
Saoirse,
Fiona,
Astrid,
Cora