Family name Biacho (Biacho 
) , all over the world, is a rare cognomen. The cognomen Biacho is habitual in Equatorial Guinea, where it is quite a common surname, Spain, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Equatorial Guinea, Spain, and the United States. Much less frequently, Biacho is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Biacho | Spain, India, Venezuela, United States, Equatorial Guinea |