Family name Yu-Jen (Yu-Jen 
) , around the globe, is a rare last name. The surname Yu-Jen is habitual in Taiwan, where it is quite a rare surname, China, where it is an extremely rare surname, and the United States. More frequently, Yu-Jen is the forename as well as the last name. Parts of the name also exists independently as a last name Yu, and a first name Jen.
| VARIANT | COUNTRY |
|---|---|
| Yu-Jen | Canada, Taiwan, United States, China, South Africa |