Surname Джа (Dja 
, Jah 
, Djá ) , globally, is a common family name. The family name Джа is characteristic of Sub-Saharan Africa, particularly Gambia, where it is quite a common surname, Liberia, and Sierra Leone (explore the name in all countries). Measured by absolute frequency, the name is most common in Algeria, India, and Indonesia. Likewise, Джа is the forename as well as the last name.