Daiji may refer to:
Daiji (era), Japanese era name Daiji, a set of kanji for numerals used in legal and financial documents to prevent forgeries Daiji, Iran, a village in Khuzestan Province, Iran Daiji, Nepal, a village development committee in Kanchanpur District, Nepal
People with the given name Daiji Morii (born 1967), Japanese tennis player Daiji Takahashi (born 1977), Japanese mixed martial artist , Japanese basketball player Daiji Kurauchi (1913), Japanese field hockey player