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Sima Yan (disambiguation) 
Summary
Sīmǎ Yán (司馬炎) is the personal name of Emperor Wu of Jin, the founding monarch of Jin dynasty (266–420).
Sima Yan also refers to:
- Sīmǎ Yǎn (司馬演), eleventh son of Emperor Wu of Jin;
- Sīmǎ Yàn (司馬晏), another son of Emperor Wu of Jin and father of Emperor Min of Jin;
- Sīmǎ Yǎn (司馬衍), personal name of Emperor Cheng of Jin.