Surname Casvan (Casvan 
) , throughout the world, is a very rare cognomen. The cognomen Casvan is habitual in Romania, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, the name is most common in Romania, Germany, and India. Very seldom, Casvan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casvan | Romania, Germany, Spain, United States, India |