Last name Failu (Failu 
) , all around the world, is a very rare family name. The family name Failu is characteristic of Indonesia, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and Nigeria. Not in comparison with a country's population, it most frequently occurs in Indonesia, India, and Nigeria. More prevalently, Failu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Failu | Tanzania, Brazil, India, Indonesia, Nigeria |