Family name Ocen (Ocen 
, มหาสมุทร 
) , around the globe, is quite a rare cognomen. The family name Ocen is characteristic of Uganda, where it is quite a rare surname, Argentina, where it is a rare surname, and Myanmar. Measured by absolute frequency, it is the most numerous in Uganda, Indonesia, and Thailand. Also, Ocen is the forename as well as the last name.