Nationality translated into French is: la nationalité
To ask someone their nationality you would say: Quelle est votre nationalité?
This means: What is your nationality?
The French word for nationalities is "nationalités."
mainly french and German
indonesia
une nationalité (fem.)
Olga Khokhlova was Russian, Jacqueline Roque was French.
If you must label them, ask them how they would classify themselves.
His mother is Belgian and I believe his dad is French.
No, nationalities, religions, days of the week, or months are not capitalized in French.
The French, the British and the Native Americans.
Germans,Polish,Czech,Mexican,french,and a few more.
This is disputed. A nationality is just either an adjective or a common noun (so not capitalized unless it is the first word of the phrase), but the most common writing usage is to capitalize nationalities. If you want to be on the safe side, use a capital letter. Anyway, a French reader is very unlikely to be startled by either writing.
Every nationalities live in France. Among them, a lot from the old French colonies, Africa, etc...