Yatsushiro Municipal Museum, City museum in Yatsushiro, Japan.

Yatsushiro Municipal Museum, also called Mirai no Mori Museum, opened in October 1991 in Yatsushiro, Kumamoto Prefecture. It was designed by Toyo Ito's office, his first public building project, as part of the Kumamoto Artpolis programme; the building won the Kumamoto Landscape Award and Architecture of the Year. Inside are a model of Yatsushiro Castle, a doll model of the Myoken-gu festival procession, Yatsushiro ware, and armour, paintings and tea utensils of the Matsui family, lords of the castle.

The museum opened in October 1991. Its permanent collection includes armour, paintings, tea utensils and other art and craft objects owned by the Matsui family, lords of Yatsushiro Castle, along with pottery excavated around Yatsushiro and Edo-period tools. A model of Yatsushiro Castle and a doll model of the Myōken-gū festival procession are also on display.

The museum displays local craft traditions like Yatsushiro pottery and traditional Miyaji washi paper manufacturing, both still practiced in the region today. Visitors can see how these handmade techniques remain part of the area's identity and daily cultural life.

The museum is open from 9:00 to 17:00, with last entry at 16:30, and closes on Mondays (or the following day when Monday is a holiday) and from 29 December to 3 January. Entry is free on 5 May and 3 November. From Yatsushiro Station or Shin-Yatsushiro Station, take the machi bus or mina bus and get off at the Kensatsucho-Homukyoku-Shi Hakubutsukan-mae stop, right by the museum; by car it is 6 km from the Yatsushiro Interchange on the Kyushu Expressway.

The building integrates creatively into the landscape through an elevated earth mound that makes it appear as a single-story structure despite its substantial interior volume. This design approach creates a surprising visual harmony with the surrounding terrain.