Where does “Viena” come from?

Viena (Romanian) comes from Italian Vienna, from Latin Vindobona, from Gaulish *Windobona.

Ancestry of “Viena”, step by step

Step	Language	Word	Meaning
1	Italian	Vienna	—
2	Latin	Vindobona	—
3	Gaulish	*Windobona	—

Viena — Etymology, Origin & Word History | Etymology Explorer