"La mulți ani Sebastian!"

Translation: Happy birthday Sebastian!

[Pop60]

In my view....lol, the best translation is Many Happy Returns Sebastian - meaning many more years but also natural English. Not a big deal of course.

[Abugslag]

We also say Many Years! in English

[WarsawWill]

Do we? Where?

[olb38]

Meaning is lost here. It is not "happy birthday" in Romanian. I am not native english speaker but seams to me that Pop60 is much closer than DL