Cognomen Цыва (Cyva 
, Цыва 
) , throughout the world, is a very rare surname. The cognomen Цыва is habitual in Belarus, where it is a rare surname, Kazakhstan, and Russia, where it is an extremely rare surname. More frequently, Цыва is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cyva | Venezuela, Brazil, United States, Democratic Republic of the Congo |
| Цыва | Belarus, Russia, Kazakhstan |