Kumamoto Prefectural Ancient Burial Mound Museum (熊本県立装飾古墳館 Kumamoto kenritsu sōshoku kofun-kan?) is a museum of decorated kofun in Yamaga, Kumamoto Prefecture, Japan. The collection includes full-size replicas of the inner chambers of twelve tumuli.
The museum was designed by Tadao Ando and completed at a cost of ¥1.6 bn in April 1992.
Coordinates: 32°59′37.2″N 130°40′10.9″E / 32.993667°N 130.669694°E