Jin is the Hanyu pinyin transliteration of a number of Chinese surnames. The most common one, Jīn 金, literally means "gold" and is 29th in the list of "Hundred Family Surnames". As of 2006, it is ranked the 64th most common Chinese surname and is sometimes transliterated as Chin. The other, less common, surnames that are "Jin" in pinyin include Jìn (晋/晉) and Jìn (靳). Source: Wikipedia (en)