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Family name Nicolaos (Nicolaos , Νικόλαος ) , throughout the world, is a rare cognomen. The last name Nicolaos is habitual in Bahrain, where it is a rare surname, Greece, and Poland, where it is a very rare surname. In absolute terms, it most frequently occurs in France, Poland, and Greece. Much more frequently, Nicolaos is the forename as well as the last name.
Derr, Kyriacou, Pesirides, Ragousis, Georgiou, Gevrekis, Nicolaou, Samaritis, Chaikalis, Kerefidis, Papoutsis, Tsoukalas, Bourboulis, Katsiadakis, Koulioumba, Kyratzoulis, Georgiades, Filippidis, Kostopoulos, Theodorakis, Theophanous, Zachariadis, Kritikos, Kellikidis, Kantaris, Calapotlis, Dari, Kydes, Loibl, Madias, Cosmas, Karydi, Kotsis, Dellis, Dictakis, Totten, Constantinou, Mellios, Alexiou, Cacouris, Dritsas, Econome, Exarhos, Youtsos, Makrides, Mamatsas, Spiratos, Christou, Sterris, and Anagnostopoulos