Lysiak

Lysiak or Łysiak is a surname of Polish-language origin. Notable people with the surname include:
 * Hilde Lysiak (born 2006), American journalist
 * Ivan Lysiak-Rudnytsky (1919–1984), Ukrainian historian
 * Krystyna Łysiak, Polish para table tennis player
 * Paweł Łysiak (born 1996), Polish football player
 * Tom Lysiak (1953–2016), Canadian ice hockey player
 * Waldemar Łysiak (born 1944), Polish author