Surname 衍斌 (Yanbin 
, 衍斌 ) , worldwide, is a rare last name. The family name 衍斌 is habitual in Singapore, where it is a rare surname, Malaysia, where it is a very rare surname, and China. Much more prevalently, 衍斌 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yanbin | China, Malaysia, Australia, Taiwan, United States |
| 衍斌 | China |