All over the world, Kalko (Kalko 
, Kalk , Калько 
) is a rare unisex forename. The forename Kalko is characteristic of Serbia, where it is a rare masculine name, and India, where it is an extremely rare mostly girly, but seldom male name. Predominantly, Kalko is the last name as well as the forename.
Mr, Cindy, Karan, Patsy, Rafal, Derya, David, Duygu, Laura, Leyla, Jakob, Johan, Elena, Halis, Helen, Flits, Irina, Orhan, Olena, Yasin, Yusuf, Yurii, Ceril, Ümit, Anima, Sasha, Ms, Sri, Jan, Jon, Mark, Mona, Anna, Adem, Asha, Chas, Bero, Rosa, Doug, John, Ivan, Igor, Olga, Onur, Maria, Marti, Murat, Steve, and Marina