Last name Brunnr (Brunn 
, Brunnr, Brønd 
) , all over the world, is quite a rare cognomen. The last name Brunnr is characteristic of Germany, where it is quite a rare surname, Denmark, and Sweden. In absolute terms, it is commonest in Germany, the United States, and France. Much less frequently, Brunnr is the forename as well as the last name.