Family name Янчат (Янчат 
, Yanchat 
) , across the world, is a very rare surname. The cognomen Янчат is characteristic of Russia, where it is an extremely rare surname, and Nigeria.
| VARIANT | COUNTRY |
|---|---|
| Янчат | Russia |
| Yanchat | Nigeria, Russia |
| янчат, василий оюнович RU (b. 1932) |
|