中文不单独说surname

Hi Anee, In this phrase, you should just use your first name or full name. In China, when people introduce themselves, they would say the first name or full name. If you just want to tell people your surname, you should tell them this is the surname, like 我姓王。 but it will be a bit strange if you introduce yourself like that when the first time you meet your friends.

You can use surname, but you should follow with titles such as 小姐，先生。which just like in English use Sir or Mandan. If you use this phrase to intro yourself, it’s better use with your first name.