How do you say what is your surname in Chinese?

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

你的姓氏是什么？ (nǐ de xìngshì shì shénme?)

Here's a breakdown of the characters:

* 你 (nǐ) - you

* 的 (de) - possessive particle (your)

* 姓氏 (xìngshì) - surname

* 是 (shì) - is

* 什么 (shénme) - what

Alternative Ways to Ask

You can also ask using these variations:

* 请问您的姓？ (qǐngwèn nín de xìng?) - Could you please tell me your surname? (Formal)

* 您的姓是…？ (nín de xìng shì ...?) - Your surname is...? (Formal, implies you know the surname)

* 你叫什么姓？ (nǐ jiào shénme xìng?) - What is your surname? (Informal)

Remember, the formality level should be adjusted depending on the context and your relationship with the person you are asking.