Marcinek may refer to:
Marcinek, Greater Poland Voivodeship, a place in Poland Ewa Marcinek (fl. from 2020), Polish-Icelandic writer Marcinek, a puppet theatre in Poznań, Poland, art director Leokadia Serafinowicz 1960–1980 Marcinek Award, of the Ale Kino! International Young Audience Film Festival Marcinek, a dessert in Polish cuisine
See also Martinek, a surname