Horrors of War may refer to:

• Horrors of War (film), 2006 American horror film
• Historical Reality and Philosophy, 1989 Croatian book by Franjo Tuđman

• Cladocyclidae
• Cladocyclus
• Cladogram Technique
• Cladonematidae
• Cladonia asahinae
• Cladonia cristatella
• Cladonia fimbriata
• Cladonia furcata
• Cladonia macrophyllodes
• Cladonia perforata
• Cladonia portentosa
• Cladopelma
• Cladophlebis hirta
• Cladophora leucographa
• Cladophore
• Cladophyllu
• Cladoraphis
• Cladorhiza concrescens
• Cladoselachidae
• Cladoselachiformes
• Cladosphaera
• Cladosphaera cespitosa
• Cladosporiosis
• Cladosporium carrionii
• Cladotaenia circi