Surname Kljucar (Kljucar 
) , around the world, is a very rare family name. The surname Kljucar is characteristic of Czechia, where it is a rare surname, Switzerland, where it is a very rare surname, and Croatia. Measured by absolute frequency, it most frequently occurs in Czechia, Germany, and Italy. Very seldom, Kljucar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kljucar | Germany, Italy, Czechia, Switzerland, Croatia |