Cognomen Doäÿu (Doäÿu 
) , throughout the world, is a very rare last name. The family name Doäÿu is characteristic of Western Asia, particularly Turkey, where it is a very rare surname. Also, Doäÿu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Doäÿu | Turkey |