Cognomen Kalayoğlu (Kalayoğlu 
) , worldwide, is a rare family name. The cognomen Kalayoğlu is characteristic of Western Asia, particularly Turkey, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kalayoğlu | Turkey |
| münci kalayoğlu Turkish physician, TR (b. 1940) |
|