Cognomen Koseloglou (Koseloglou 
) , in all the world, is a very rare last name. The last name Koseloglou is characteristic of Southern Europe, particularly Greece, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koseloglou | Greece |
Aspa, Stavros, Ioannis, Periklis, Konstantia, and Chrisanthos