Cognomen דוגן (Dugan 
, Duggan , דוגן 
) , globally, is a common family name. The cognomen דוגן is habitual in Ireland, where it is a common surname, British Virgin Islands, where it is quite a common surname, and Guernsey (explore the name in all countries). In absolute terms, it is commonest in the United States, the United Kingdom, and Ireland. Very seldom, דוגן is the forename as well as the last name.