Family name 恩西 (Nsi 
, 恩西 
, Ensey 
) , in the entire world, is quite a rare surname. The surname 恩西 is characteristic of Sub-Saharan Africa, particularly Equatorial Guinea, where it is quite a common surname, Gabon, where it is quite a rare surname, and Cameroon. Not in comparison with a country's population, this name is the most popular in Cameroon, the United States, and Nigeria. Much less frequently, 恩西 is the forename as well as the last name.