Chernyak, Czerniak, Czarniak, Cherniak or Cherniack is a gender-neutral Slavic surname. It is derived from čьrnъ ("black").
Czerniak and Czarniak are the Polish variants, with Czerniak being about six times more common.
People
Alexey Chernyak (born 1973), Russian politician
Andrzej Czarniak (1931–1985), Polish alpine skier
Boris Cherniak (born 1964), Russian-born comedy hypnotist, motivational speaker, entertainer, author, illusionist and hypnotherapist Christopher Cherniak, American philosophy academic Evgeniy Chernyak (born 1969), Ukrainian businessman Konrad Czerniak (born 1989), Polish swimmer Leah Cherniak (born 1956), Canadian playwright and theatre director Lindsay Czarniak (born 1977), American sports anchor and reporter Moshe Czerniak (1910–1984), Polish-Israeli chess master Nathalie Sarraute (born Natalya Chernyak, 1900–1999), French lawyer and writer Saul Cherniack (1917–2018), Canadian lawyer and politician Volodymyr Chernyak (1941–2021), Ukrainian politician Włodzimierz Czarniak (1934–1964), Polish alpine skier Yan Chernyak (1909–1995), World War II Soviet spy Brothers Tim Czerniak and Elis Czerniak of Halves (band)