Family name רוזנאי (Roznai 
, רוזנאי 
) , in the world, is a very rare surname. The surname רוזנאי is characteristic of Israel, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States. Much less frequently, רוזנאי is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roznai | Germany, India, Brazil, United States |
| רוזנאי | Israel |