Tretiak

Tretiak or Tretyak (Третья́к or Третьяк; Третяк or Трет`як) is a gender-neutral Slavic surname. It may refer to:
 * Józef Tretiak (1841–1923), Polish writer
 * Sergiy Tretyak (born 1984), Ukrainian association football player
 * Serhiy Tretyak (born 1963), Ukrainian association football player
 * Maksym Tretyak (born 1984), Ukrainian boxer
 * Maxim Tretiak (born 1996), Russian ice hockey goaltender, grandson of Vladislav
 * Vladislav Tretiak (born 1952), Soviet ice hockey goaltender
 * Vladyslav Tretiak (born 1980), Ukrainian sabre fencer