An Italian Phrase for Asking About Someone's Birthday: "Quando è il tuo compleanno?"

"Quando è il tuo compleanno?" means "When is your birthday?" and it's the basic Italian expression used to ask someone when their birthday is. It's a handy conversation starter. To answer, you can say something like "Il mio compleanno è a maggio." (My birthday is in May). To wish someone well, say "Buon compleanno!" (Happy birthday!).