Alex is short for Alexander so the Irish equivalent is
Alastar
Alex = アレックス (pronounced Arekkusu)
I cannot find any Irish language form of the name.
Críostóir (male name)
As a last name de Bhailís.
The name would be equated with Aodh (as is Hugh).
O'Sullivan = Ó Súilleabháin
Alex Constancios nationality is chinese with a mix of irish
As a surname Scot;as a first name Scot or Scott.
AILÍS or AILÍSE
The Irish equivalent of "Anne" is Anna, although the native name Áine isoften substituted. "Marie" is the French version of the Irish Máire.
The female name "Erin" is spelled the same in Irish;"Erin Murphy" would be "Erin Ní Mhurchú"
No - the most famous book by that name was written by Alex Haley.