Surname Fdaf (Fdaf 
) , worldwide, is a rare family name. The family name Fdaf is habitual in Sri Lanka, where it is a rare surname, China, where it is an extremely rare surname, and the United Kingdom. Not in comparison with a country's population, the name is most common in Sri Lanka, China, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Fdaf | United States, Sri Lanka, United Kingdom, China |