| 139th Division | |
|---|---|
| 第139師団 | |
| Active | 1945–1945 |
| Country |  Empire of Japan |
| Allegiance | 1st area army |
| Branch | Imperial Japanese Army |
| Type | Infantry |
| Garrison/HQ | Jilin |
| Nickname(s) | Formidable division |
| Engagements | none |
The 139th Division (第139師団, Dai-hyakusanjūkyū Shidan) was an infantry division of the Imperial Japanese Army. Its call sign was the Formidable Division (不屈兵団, Fukutsu Heidan). It was formed on 10 July 1945 in Dunhua as a triangular division. It was one of eight simultaneously created divisions, together with the 134th, 135th, 136th, 137th, 138th, 139th, 148th and 149th divisions. The nucleus for its formation were the 77th, 79th, and 80th transport guard units.