In the entire world, Shirkov (Ширков , Shirkov ) is an extremely rare male forename. Much more frequently, Shirkov is the last name as well as the forename.
Shirkow, Zhirkov, Жирков, Шірков, and Щирков
Mr, Dobromir, Svetlana, Stanimir, Dimitar, Raychin, Aleksey, Mikhail, Vitali, Valery, Nikola, Julien, Stepan, Sergey, Sergiy, Irina, Rumen, Slava, Alexander, and Aleksander
, Shirkov 
) is an extremely rare male forename. Much more frequently, Shirkov is the last name as well as the forename.