[2] Less common Chinese surnames romanized as Han include: 寒 (Hán) and 汉/漢 (Hàn).

It is an alternate surname of the Yellow Emperor (Gongsun Xuanyuan) and the Zhou ruling family.

When the state was conquered by Qin in 230 BC, members of the ruling family adopted Han '韩' as their surname.

Non-Han ethnic groups tend to adopt Chinese surnames through the process known as sinicization.

During the reforms of Emperor Xiao Wen of Northern Wei, the Xianbei surname 'Dahan', 大汗 (dà hàn) in Chinese, was changed to Han '韩' because the two names sound similar after 'Da' or '大' is dropped.