Family name Koissy (Koissy 
) , all around the world, is a rare surname. The family name Koissy is habitual in Ivory Coast, where it is quite a rare surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koissy | Ivory Coast, United States, France |
|
blaise koissy Ivorian footballer, CI (b. 1983) |
|
| blaise koissy association football player, CI (b. 1980) |
|