Dazaifu may refer to:
- Dazaifu, Fukuoka, a town in northern Kyūshū
- Dazaifu (term), a Japanese term derived from the Taihō code administrative innovations of the 8th century
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- Dazaifu (region), the administrative region in Kyūshū, established by the 8th century Imperial organization (ritsuryō) reforms
- Dazaifu (government), the regional government in Kyūshū
- Dazaifu (castle), the headquarters of the regional government in Kyūshū
- Dazaifu (office), the office at the head of the regional government in Kyūshū
- Dazaifu (official), the office-holder at the head of the regional government in Kyūshū