Cognomen Kalkay (Kalkay 
) , in all the world, is a rare family name. The family name Kalkay is characteristic of Turkey, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Kalkay is the forename as well as the last name.
Ali, Baris, Bahar, Berna, Burak, Buket, Kerem, Kevin, Kemal, Raisa, Rafet, Denis, Duygu, Galip, Leyla, Taner, Tamer, Timur, Nazan, Necla, Neşe, Ercan, Ahmet, Ayhan, Aysun, Ayşe, Cem, Tim, Eda, Maya, Mert, Arda, Cenk, Bora, Dudu, Eren, Ertan, Emel, Hava, Merve, Melek, Mesut, Metin, Saban, Sibel, Selma, Sedat, Atike, Emre, and Emine