For Chinese names: first name refers to the given name, and last name refers to the surname. surname refers to the middle name, no.
For example: Zhang San. first name: san, last name: Zhang.
Let’s talk about surname. It is for foreigners’ names. It is also called the middle name. The origin standards are:
1. Father’s name. For example, Zhang San’s father’s name is: Zhang Mazi. Then Zhang San can also be named: San Mazi Zhang
2. Noble surname. Foreign names began in the Middle Ages or earlier in the Roman Empire and even in ancient Greece. Some nobles added a word in the middle to show their identity.
For example: Maupassant who wrote "The Necklace", his full name is: Guy de Maupassant (English Guy de Maupassant),
"De" (de) is his nobility surname.