How do you say what is your nationality in Chinese?

The most common way to ask "What is your nationality?" in Chinese is:

你是什么国籍？ (nǐ shì shénme guójí?)

Here's a breakdown:

* 你 (nǐ) - you

* 是 (shì) - to be

* 什么 (shénme) - what

* 国籍 (guójí) - nationality

You can also use:

你是哪国人？ (nǐ shì nǎ guó rén?)

* 你是 (nǐ shì) - you are

* 哪 (nǎ) - which

* 国 (guó) - country

* 人 (rén) - person

Both phrases are grammatically correct and commonly used, so you can choose whichever you prefer.