Last name Сир (Sire 
, Sir 
, Syr 
) , in all the world, is a common cognomen. The family name Сир is characteristic of Syria, where it is a common surname, Bhutan, where it is quite a common surname, and Panama (explore the name in all countries). In absolute terms, it most frequently occurs in Syria, France, and Bangladesh. Very seldom, Сир is the forename as well as the last name.