Grzesiak

The surname Grzesiak is a Polish surname. It is a patronymic surname, derived from the given name Grzegorz, which is the Polish form of Gregory. Thus, Grzesiak essentially means "son of Grzegorz" or "descendant of Grzegorz." It's a relatively common surname in Poland. Like many Polish surnames, it has grammatical gender variations, typically affecting the ending when referring to a female (e.g., Grzesiak vs. a related feminine form that might end in -ówna or -ska, although the exact form will depend on the specific derivation rules and historical period when the surname became fixed). The distribution of the surname within Poland is likely concentrated in specific regions, as is common with Polish surnames due to historical migration patterns and family ties.