It is. It's one of the Irish Gaelic versions of John. The other one is Eoin.
Rego Sen's birth name is Regaip A. Sen.
Rimi Sen's birth name is Shubhomitra Sen.
Sushmita Sen's birth name is Sushmita Shubeer Sen.
Victor Sen Yung's birth name is Yung, Sen.
Janjuan is not Gaelic.
It has no meaning in Gaelic; it's not a Gaelic name.
The name is not in Scottish Gaelic.
Raima Sen's birth name is Raima Dev Varma.
Makayla is not a word or name in Gaelic, there is no Gaelic pronounciation.
The word for "name" is ainm in Irish (Gaelic);In (Scots) Gaelic it's also ainm.('Surname' is sloinne in Irish; sloinneadh in Scottish Gaelic.)
You don't. It is not a Gaelic name.
"Matthew' is not a Gaelic name; it's a English name.