Bartoszewicz is a Polish surname. Notable people with the surname include:
- Artur Bartoszewicz (born 1974), Polish economist
- Elżbieta Grabarek-Bartoszewicz, Chairpersons of the City Council of Gdańsk 1998–2001
- Julian Bartoszewicz (1821–1870), Polish historian
- Kazimierz Bartoszewicz (1852–1930), Polish writer and historian
- Kaziuk Bartoszewicz, Konopielka character
- Myrtle Bartoszewicz, Woody Herman mother
- Tomasz Bartoszewicz, Central Customs Office executive of Tax and Customs Service (Poland)
- Władysław Bartoszewicz, Powszechny Zakład Ubezpieczeń CEO
- Włodzimierz Bartoszewicz (1899–1983), Polish painter