grandma born Ireland with UK passport-am I eligible for...

[Abigail10]

... Irish citizenship?
Hello
my grandmother was born somewhere in South Ireland and emigrated to the States in 1931. She held a UK passport (I don't know if that is important but I think she still held it in 1940) So even if she had a UK passport do I qualify for Irish citizenship?

[JAJ]

Yes, it seems.

But you would have to apply for registration as an Irish citizen (Foreign Birth Registration) and prove the family link.

Do it sooner rather than later (if it's what you want) as the facility could be closed to new applicants.