Family name Pirjan (Pirjan 
, Пиржан 
) , worldwide, is a very rare cognomen. The family name Pirjan is characteristic of Kyrgyzstan, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and Ukraine. Measured by absolute frequency, it is the most numerous in Kyrgyzstan, the United States, and the United Kingdom. More frequently, Pirjan is the forename as well as the last name.