Cognomen 伯思 (Berth 
, 伯思 
) , in the entire world, is quite a rare family name. The family name 伯思 is habitual in Belgium, where it is quite a rare surname, Denmark, and Argentina, where it is a rare surname. Measured by absolute frequency, the name is most common in Western Europe, particularly Germany, France, and Belgium. Likewise, 伯思 is the forename as well as the last name.