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 | Saudi Arabia, United States, Tanzania, India, Pakistan |
| Kivi | Estonia, Finland, United States, Tanzania, India |
| كيفي | Saudi Arabia, Iran, Egypt, Oman, Iraq |
| Kiffy | United Kingdom, Taiwan, Thailand, United States, Canada |