Surname Byakuya (Byakuya 
) , in the world, is a very rare last name. The cognomen Byakuya is habitual in Indonesia, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and France. Measured by absolute frequency, it most frequently occurs in Indonesia, China, and France. Much less frequently, Byakuya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Byakuya | Malaysia, China, France, Indonesia, Philippines |