Cognomen Giennadij (Геннадий 
, Генадий , Giennadij 
) , all around the world, is quite a common surname. The cognomen Giennadij is habitual in Kyrgyzstan, where it is quite a common surname, Moldova, and Belarus, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Kyrgyzstan, Russia, and Belarus. Predominantly, Giennadij is the forename as well as the last name.