Surname キーン (Keen 
, Kean , Keane , among others...) , in the entire world, is a widespread last name. The family name キーン is habitual in Ireland, where it is a common surname, Malaysia, and New Zealand, where it is quite a common surname (explore the name in all countries). In absolute terms, it is the most numerous in the United States, Malaysia, and the United Kingdom. Very seldom, キーン is the forename as well as the last name.