Dayer may refer to:

• Dayer, Khuzestan, a village in Iran
• Bandar Deyr, a city in Bushehr Province, Iran
• Dayêr, village in Tibet

• Anzoátegui State Anthem
• Anzoátegui, Tolima
• Anzu
• Anzu Mazaki
• Anzus
• ANZUS Pact
• ANZUS treaty
• Anzá
• Anzère
• Anzû
• Anáhuac
• Anália de Victória Pereira
• Anápolis
• Anápolis, brazil
• Anár
• Anárion
• Anæsthesia
• Anæsthesiology
• Anæsthetic
• Anæsthetics
• Anæsthetist
• Aného
• Aníbal Acevedo-Vilá
• Aníbal González Irizarry
• Aníbal Pinto