Last name Seku (Seco 
, Seku 
, سيكو 
) , all around the world, is a common surname. The last name Seku is habitual in Portugal, where it is quite a common surname, Argentina, where it is quite a rare surname, and Venezuela. Not in comparison with a country's population, it is the most numerous in Argentina, Egypt, and Philippines. Likewise, Seku is the forename as well as the last name.