Last name Wenjan (Wenjan 
) , all over the world, is an extremely rare cognomen. The family name Wenjan is habitual in Latin America and the Caribbean, particularly Argentina, where it is an extremely rare surname. Much more prevalently, Wenjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wenjan | United States, Argentina, Philippines, India, China |