Surname Isek (Isek 
) , across the world, is quite a rare cognomen. The family name Isek is habitual in Somalia, where it is quite a rare surname, Switzerland, where it is a rare surname, and Nigeria. Not in comparison with a country's population, it is the most numerous in Sub-Saharan Africa, particularly Nigeria, Somalia, and the Democratic Republic of the Congo. Also, Isek is the forename as well as the last name.