Cognomen Bieny (Bieny 
) , worldwide, is an extremely rare family name. The surname Bieny is characteristic of the United Kingdom, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Much more frequently, Bieny is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bieny | Philippines, United Kingdom, Democratic Republic of the Congo, Venezuela, South Africa |