Lan is the Mandarin pinyin and Wade–Giles romanization of the Chinese surname written 兰 in simplified Chinese and 蘭 in traditional Chinese.
As of 2008, it is the 154th most common surname in China, shared by 840,000 people.
[1] Lan 蘭 is not listed in the Song dynasty classic text Hundred Family Surnames.
[2] The people of the Xiongnu Lan (tribe) assimilated into Han Chinese culture and were given the surname Lan.
This is a Chinese name, meaning the surname is stated before the given name, though Chinese persons living in Western countries will often put their surname after their given name.