Cognomen Колвин (Colvin 
, Колвин) , in all the world, is a common surname. The family name Колвин is characteristic of Guam, where it is quite a common surname, the United States, where it is quite a rare surname, and Australia. Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Australia. Much less frequently, Колвин is the forename as well as the last name.