No, Omar is an Arabic name, but considering that Arabs reached the iberian peninsula and that Arabic and Spanish cultures interacted, it is possible to find Spanish Muslims with the name Omar.
Well this is "what is your name" in Spanish: ¿Cómo te llamas? or ¿Cómo se llama?
No it is not Spanish :p
Boyle is actually Irish.
It's not either of them. It is Irish.