How do you ask in French what nationality are you?

The most common way to ask "What nationality are you?" in French is:

"De quelle nationalité êtes-vous ?"

Here's a breakdown:

* De quelle: Of what

* nationalité: Nationality

* êtes-vous: Are you (formal "you")

Other possible ways to ask:

* Quelle est votre nationalité ? (What is your nationality?)

* D'où venez-vous ? (Where are you from?) - This is a more general question, but it can often lead to a discussion about nationality.

Remember to use the formal "vous" when speaking to someone you don't know well or who is older than you.