Last name Істамбулі (Істамбулі 
) , all around the world, is an extremely rare cognomen. The cognomen Істамбулі is habitual in Eastern Europe, particularly Ukraine, where it is an extremely rare surname. Likewise, Істамбулі is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Істамбулі | Ukraine |