Ke (Chinese: 柯; pinyin: Kē) is a Chinese surname. It originally appeared on the Hundred Family Surnames.[where?] As of 2006 was no longer one of the top 100 most common surnames.[citation needed] A 2013 study found that it was the 145th most common surname, shared by 1.06 million people or 0.080% of the population, with the province most being Hubei. It is also spelled as Quah, Qua, Kua, Kuah, Kwa, Ke, Ker, Ko, Kok, or O in English, owing to variations in dialect (for instance, O derives from the Cantonese pronunciation of the character) or romanisation system (compare Ke, which derives from Pinyin, with Ko, which derives from Wade-Giles.)