Last name כריסטיאני (Cristiani 
, Christiani 
, כריסטיאני 
) , all over the world, is a common family name. The cognomen כריסטיאני is habitual in Italy, where it is quite a rare surname, Uruguay, and Indonesia. In absolute terms, it is commonest in Indonesia, Italy, and Argentina. Also, כריסטיאני is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cristiani | Indonesia, Mexico, Argentina, Brazil, Italy |
| Christiani | Indonesia, Mexico, Argentina, Brazil, Germany |
| כריסטיאני | Israel |
Khrystyany, Krystyany, and Кристиани