Cognomen كيفي (Kaifi 
, Kivi 
, كيفي 
) , in the world, is quite a common last name. The family name كيفي is habitual in Estonia, where it is a common surname, Finland, where it is quite a common surname, and Fiji, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in India, Estonia, and Finland. Likewise, كيفي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaifi | Tanzania, Saudi Arabia, India, United States, Pakistan |
| Kivi | Tanzania, India, Estonia, United States, Finland |
| كيفي | Iran, Saudi Arabia, Iraq, Oman, Egypt |
| Kiffy | Thailand, Taiwan, United Kingdom, Canada, United States |