Last name Širin (Ширин 
, Širin 
) , all over the world, is quite a rare cognomen. The last name Širin is characteristic of Kyrgyzstan, where it is quite a common surname, Armenia, and Belarus, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Kyrgyzstan, Russia, and Armenia. Also, Širin is the forename as well as the last name.