Surname Собеський (Sobieski 
, Собеський 
) , across the world, is quite a rare last name. The surname Собеський is characteristic of Poland, where it is quite a rare surname, Belgium, where it is a rare surname, and the United States. Not in comparison with a country's population, it is the most numerous in the United States, Poland, and Brazil. Also, Собеський is the forename as well as the last name.