Last name Sosi (Sosi 
, سوسي 
, Соси 
) , in the world, is a common cognomen. The family name Sosi is habitual in Armenia, where it is quite a common surname, Morocco, and Libya, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Morocco, Armenia, and Syria. Also, Sosi is the forename as well as the last name.