Engen (延元) was a Japanese era of the Southern Court during the Era of Northern and Southern Courts after Kemmu and before Kōkoku, lasting from 1336 to 1340. Reigning Emperors were Emperor Go-Daigo and Emperor Go-Murakami in the south and Emperor Kōmyō in the north.
Northern Court Equivalents
| Engen | 1st | 2nd | 3rd | 4th | 5th |
| Gregorian | 1336 | 1337 | 1338 | 1339 | 1340 |
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