Surname Osem (Osem 
, אסם ) , around the globe, is a rare last name. The surname Osem is characteristic of Western Asia, particularly Israel, where it is a rare surname, Syria, and Saudi Arabia, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Nigeria, Syria, and Israel. Likewise, Osem is the forename as well as the last name.