Žitnik (Slovenia) or Žitník (Czech Republic) is a surname. Notable people with the surname include:
Boštjan Žitnik (born 1971), Slovene canoer Franc Žitnik (born 1941), Yugoslav canoeist Leon Žitnik (born 1937), Yugoslav canoeist Tilen Žitnik (born 1991), Slovene tennis player
See also