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