Globally, Oostelbeers (Bersa 
, Oostelbeers) is a rare unisex first name. The given name Oostelbeers is characteristic of Latin America and the Caribbean, particularly Peru, where it is a very rare feminine name, Mexico, where it is a very rare primarily girly, but very infrequently boy's name, and Colombia, where it is a very rare female name. In absolute terms, it most frequently occurs in India, Mexico, and Peru. Also, Oostelbeers is the last name as well as the forename.