Iizuka(饭冢市,Iizuka-shi) is a city located at the confluence of the Honami and Onga rivers in central Fukuoka Prefecture, Japan. The city was founded on January 20, 1932.

Iizuka was an important post-station on the Nagasaki Kaidō during the Edo Era. As Japan industrialised, Iizuka became the center of the most productive coal fields in Japan located throughout the surrounding Chikuho district. After the end of Second World War there was a large influx of people into the city as it was one of the few areas that offered a large number of jobs in the coal mines and related fields.