Last name Grzych (Grzych 
) , in the world, is a rare family name. The surname Grzych is characteristic of Poland, where it is a rare surname, Czechia, and the United States, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in the United States, Poland, and France. Also, Grzych is the forename as well as the last name.
| guillaume grzych researcher |
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