I like
Silvia. It's not a name I'd use, but I'd like to see it on someone else's kid.
I think it works well internationally and forms of it are used in most countries (spelled
Sylvia,
Silvija, etc.). In Croatia it's not fashionable now, but common on grownups.
Silvia IoSilvia HopeSilvia DorothySilvia SimoneSilvia GlorySilvia BarbaraSilvia TessSilvia JustineSilvia ZoeSilvia JosephineSilvia OliveSilvia Bethany