Family name 金氏 (Guinness 
, 金氏 
) , throughout the world, is quite a rare surname. The last name 金氏 is habitual in Ireland, where it is quite a common surname, Trinidad and Tobago, where it is quite a rare surname, and New Zealand, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Ireland, the United Kingdom, and the United States. Much less frequently, 金氏 is the forename as well as the last name.