Last name Kusnierczak (Kusnierczak 
) , globally, is a rare cognomen. The surname Kusnierczak is characteristic of Poland, where it is a rare surname, Lithuania, and Germany, where it is a very rare surname. In absolute terms, it is the most numerous in Poland, Germany, and the United States. Much less frequently, Kusnierczak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kusnierczak | Poland, Lithuania, Germany, United States |