Last name Тронн (Trond 
, Тронн) , around the world, is a rare cognomen. The last name Тронн is characteristic of Norway, where it is quite a rare surname, Denmark, where it is a rare surname, and Spain. In absolute terms, it is the most numerous in Norway, Spain, and the United States. Much more frequently, Тронн is the forename as well as the last name.