Cognomen 博尚 (Bossan 
, 博尚) , globally, is quite a rare surname. The cognomen 博尚 is characteristic of Czechia, where it is quite a rare surname, France, where it is a rare surname, and Kenya. Not in comparison with a country's population, it is commonest in France, Nigeria, and Czechia. Very seldom, 博尚 is the forename as well as the last name.