Krajišnik (meaning 'man from krajina' in Serbo-Croatian) may refer to:
Krajišnik (surname) Krajišnik, Bosnia and Herzegovina, Bosnian village in the Gradiška municipality Krajišnik, Sečanj, Serbian village in the Sečanj municipality NK Krajišnik Velika Kladuša, Bosnian association football club Military Frontier soldier or resident
See also Bosanska Krajina Kreshnik, a given name and surname