Throughout the world, Jahnenko (Яхненко , Jahnenko ) is an extremely rare masculine first name. Much more frequently, Jahnenko is the last name as well as the forename.
Jahņenko, and Ягненко
Aleksandra
, Jahnenko 
) is an extremely rare masculine first name. Much more frequently, Jahnenko is the last name as well as the forename.