Family name Yancek (Yancek 
) , across the world, is a very rare surname. The cognomen Yancek is characteristic of South Africa, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Argentina. Not in comparison with a country's population, this name is the most popular in South Africa, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Yancek | United Kingdom, South Africa, United States, Argentina, Brazil |