Cognomen Khankaldyyan-Haftvan (Khankaldyyan-Haftvan 
) , all around the world, is an extremely rare family name. The surname Khankaldyyan-Haftvan is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Khankaldyyan.
| VARIANT | COUNTRY |
|---|---|
| Khankaldyyan-Haftvan | United States |