>
Family name Duffey (达菲 , Duffey , دوفى) , around the world, is quite a common cognomen. The cognomen Duffey is characteristic of the United States, where it is quite a rare surname, Uruguay, and Australia, where it is a rare surname. In absolute terms, it is commonest in the United States, the United Kingdom, and Australia. Much less frequently, Duffey is the forename as well as the last name.