Martyniuk (Polish) or Мартинюк (Ukrainian, transcribed as Martynyuk) is a patronimical surname of Ukrainian origin, it means son of Martyn.
References
Martyniuk Wikipedia(Text) CC BY-SA
Martyniuk (Polish) or Мартинюк (Ukrainian, transcribed as Martynyuk) is a patronimical surname of Ukrainian origin, it means son of Martyn.