| 31st Division | |
|---|---|
| Active | 1943–1944 |
| Country |  Empire of Japan |
| Branch |  Imperial Japanese Army |
| Type | Infantry |
| Size | Division |
| Garrison/HQ | Bangkok |
| Nickname(s) | "Furious Division" |
| Engagements | Battle of Kohima |
| Commanders | |
| Notable commanders | Kotoku Sato Shigesaburō Miyazaki |
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The 31st Division (第31師団, Dai-sanjūichi Shidan) was an infantry division of the Imperial Japanese Army. Its call sign was the Furious Division (烈兵団, Retsu Heidan). The 31st Division was raised during World War II in Bangkok, Thailand, on March 22, 1943, out of Kawaguchi Detachment and parts of the 13th, 40th and 116th divisions. The 31st division was initially assigned to 15th army (the part of the Japanese Burma Area Army).