Cognomen Blenny (Blenny 
) , globally, is a rare family name. The last name Blenny is characteristic of Switzerland, where it is a rare surname, France, and Venezuela, where it is a very rare surname. Likewise, Blenny is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blenny | Dominican Republic, Switzerland, France, Democratic Republic of the Congo, Peru |