Grzegorczyk () is a Polish patronymic surname developed from the given name Grzegorz (Gregory).
Archaic feminine forms are Grzegorczykowa (by husband), Grzegorczykówna (by father); they still can be used colloquially. Some of them use Korczak coat of arms. It might be transliterated as Gregorczyk. Notable people with this surname include the following:
Andrzej Grzegorczyk (1922–2014), Polish logician, mathematician, philosopher and ethicist Renata Maria Grzegorczykowa (born 1931), Polish philologist and an expert in polonist linguistics Robert Grzegorczyk (born 1973), Polish figure skater Ryszard Grzegorczyk (1939–2021), Polish footballer Sylwia Gregorczyk-Abram (born 1982), Polish attorney and social activist Tomasz Grzegorczyk (born 1981), Polish football manager and player (1905–1981), Polish Righteous Among the Nations
See also
Grzegorczyk hierarchy, hierarchy of functions used in computability theory Grzegorzewski Hryhorchuk