In all the world, Сир (Sire 
, Sir 
, Syr 
) is quite a common epicene first name. The forename Сир is characteristic of Syria, where it is quite a rare epicene name, Senegal, and Guinea, where it is quite a rare male name. Not in comparison with a country's population, it is the most numerous in India, the Democratic Republic of the Congo, and Ethiopia. More prevalently, Сир is the last name as well as the forename.
Сир is also a prevalent name for the fictitious and mythical characters: Sir Ector , the fictional character from Disney's "The Sword in the Stone"; Sir Kay , the fictional character from Disney's The Sword in the Stone; Sir Hiss , the character from Disney's Robin Hood; Sir John Falstaff , the operatic character in the opera Falstaff by Giuseppe Verdi; a fat knight and Sir Handel , character in The Railway Series, and in many other works.