The name of the country derives either from a root word related to Gaelic iar = 'west' or it is a combination of Gaelic i = 'island' and iarunn = 'iron' 
See also Erin
|Female ♀||Male ♂|
|#: count of main first name only|
|&: count of both main and additional first names|
| Name counts are approximate as statistics normally is not published
for names given to less than 3 or 5 persons per country.
No recent statistics trend found in databases for Éirinn.