Surname سيسو (Siso 
, Sisu 
, سيسو 
) , all around the world, is a common cognomen. The surname سيسو is characteristic of Venezuela, where it is quite a rare surname, Israel, and Algeria. Measured by absolute frequency, this name is the most popular in Algeria, Venezuela, and Philippines. Likewise, سيسو is the forename as well as the last name.