Family name Efkan (Efkan 
) , all around the world, is a very rare cognomen. The surname Efkan is habitual in Turkey, where it is a very rare surname, Georgia, and Nigeria, where it is an extremely rare surname. Much more frequently, Efkan is the forename as well as the last name.
Ay, Güler, Efekan, Yilmaz, Yildiz, Özkan, Çelik, Çetin, Akbulut, Balikci, Korkmaz, Yüksel, Yılmaz, Çeli K, Çeti N, Erdoğan, Yildirim, Özdemi R, Özdemir, Öztürk, Doğan, Demi R, Keskin, Kaplan, Lu, Can, Efe, Acar, Kara, Kaya, Koç, Kurt, Uzun, Şimşek, Aslan, Bulut, Köse, Demir, Turan, Yavuz, Arslan, Aktaş, Ceylan, Karaca, Aydin, and Yıldırım