If pseudo-translations count and she can be called a different thing in each country:
Ffion &
Fiona (not really a translation though)
Elin /
Elen &
LéanElain &
Léan (also not a real translation)
Bethan &
Isibéal Aran &
Aeron (not a real translation)
Sioned &
Sinéad Mair &
Máire Eirian &
Eireann (not a real translation)
Catrin &
Caitríona