Cognomen 斯萌 (Simeng 
, 斯萌 ) , worldwide, is a rare last name. The surname 斯萌 is habitual in Ethiopia, where it is a rare surname, Malaysia, where it is a very rare surname, and China. More prevalently, 斯萌 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Simeng | China, Ethiopia, Taiwan, United States, India |
| 斯萌 | China |