Family name Bi-Yu (Bi-Yu 
) , in the world, is a rare last name. The last name Bi-Yu is habitual in Eastern Asia, particularly Taiwan, where it is a rare surname. Also, Bi-Yu is the forename as well as the last name. Parts of the name also exists independently as a last name Bi, and a last name Yu.
| VARIANT | COUNTRY |
|---|---|
| Bi-Yu | United States, Taiwan |