Cognomen Цыль (Cyl 
, Ziehl 
, Цыль 
) , all around the world, is quite a rare last name. The family name Цыль is habitual in Germany, where it is a rare surname, Hong Kong, and Poland. In absolute terms, it is commonest in Germany, the United States, and Poland. Likewise, Цыль is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cyl | Germany, Mexico, United States, Poland, Democratic Republic of the Congo |
| Ziehl | Germany, South Africa, Mexico, United States, France |
| Цыль | Russia |