Czerniak

Czerniak may refer to:
 * Czerniak (surname)
 * Czerniak, Warmian-Masurian Voivodeship
 * Czerniak, Kuyavian-Pomeranian Voivodeship
 * Czerniak., botanical author abbreviation for Ekaterina Georgiewna Czerniakowska (1892-1942)

It is also the Polish word for "melanoma".