Cognomen Katyu (Katyu 
) , in all the world, is a very rare last name. The surname Katyu is habitual in Malaysia, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Likewise, Katyu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Katyu | South Africa, Malaysia, Bulgaria, United States, India |