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Cognomen Boell (Boell
, Бел
, Böll
) , worldwide, is quite a rare family name. The cognomen Boell is habitual in Germany, where it is quite a rare surname, Denmark, where it is a rare surname, and Sweden. In absolute terms, it is commonest in Germany, Brazil, and the United States. Very seldom, Boell is the forename as well as the last name.