Surname Сеид (Seid 
, Seyid , Сеид 
) , globally, is a widespread cognomen. The family name Сеид is habitual in Ethiopia, where it is a common surname, Saudi Arabia, where it is quite a common surname, and Djibouti (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Ethiopia, Saudi Arabia, and Sudan. Likewise, Сеид is the forename as well as the last name.