Hornyak or Hornyák is a surname. Derived from Slovak/Czech Horňák and Ukrainian Горняк, it originally referred to a mountain dweller in Slavic languages. Its counterpart, Dolňák or Dolniak, means "valley dweller".
Notable people with the surname include:
Ágnes Hornyák (born 1982), Hungarian handball player Allan Hornyak (1951–2025), American basketball player Augustine Hornyak (1919–2003), Ukrainian Christian religious leader Dóra Hornyák (born 1992), Hungarian handball player Jennifer Hornyak (born 1940), Canadian artist Zsolt Hornyák (born 1973), Slovak footballer Kathleen Ann Hornyak (born 1955), American Clinical Psychologist Jack Hornyak (born 2005), Sunderland Football Club Player
See also
Hornak