Throughout the world, בולסלב (Boleslaw 
, בולסלב 
) is quite a rare boy's forename. The first name בולסלב is characteristic of Poland, where it is quite a rare male name, Germany, where it is a rare boy's name, and Israel, where it is a rare principally boy's, but very seldom girly name. Measured by absolute frequency, this name is the most popular in Poland, Germany, and the United States. Much more frequently, בולסלב is the last name as well as the forename.