Cognomen Бертил (Bertil 
, Бертил 
) , all over the world, is quite a rare family name. The surname Бертил is habitual in Reunion, where it is quite a common surname, Sweden, where it is quite a rare surname, and France, where it is a rare surname. In absolute terms, it most frequently occurs in France, Sweden, and Algeria. More prevalently, Бертил is the forename as well as the last name.