Dazaifu is a city located in Fukuoka Prefecture, Japan, part of the greater Fukuoka metropolitan area. Nearby cities include Ōnojō and Chikushino. Although mostly mountainous, it does have arable land used for paddy fields and market gardening.
As of October 2018, the city has an estimated population of 72,231 with 29,355 households and a population density of 2,440 persons per km². The total area is 29.58 km².
The city was officially founded on April 1, 1982, although it has been important historically for more than a thousand years. It was an administrative capital of Fukuoka at around 663 CE.