Cognomen Strefi (Strefi 
) , all around the world, is a very rare last name. The last name Strefi is habitual in Albania, where it is quite a rare surname, Greece, where it is a rare surname, and Canada, where it is a very rare surname. In absolute terms, this name is the most popular in Southern Europe, particularly Albania, Greece, and Italy.
| VARIANT | COUNTRY |
|---|---|
| Strefi | Italy, Greece, Canada, Albania |