Last name 约西亚 (Josiah 
, 约西亚) , throughout the world, is a common cognomen. The last name 约西亚 is habitual in Antigua and Barbuda, where it is a common surname, Nigeria, where it is quite a common surname, and Botswana. Not in comparison with a country's population, this name is the most popular in Sub-Saharan Africa, particularly Nigeria, Tanzania, and Kenya. Also, 约西亚 is the forename as well as the last name.