Cognomen Youjin (Youjin 
, 友金 , 有金 ) , in the entire world, is quite a rare surname. The cognomen Youjin is characteristic of South Korea, where it is quite a rare surname, China, where it is a rare surname, and Malaysia, where it is a very rare surname. More prevalently, Youjin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Youjin | Hungary, Singapore, United States, South Korea, China |
| 友金, 友进, 有金 | China |
ヨウジン, 优劲, 优津, 优瑾, 优紧, 优衿, 优进, 优金, 优锦, 佑巾, 佑津, 佑瑾, 佑衿, 佑近, 佑进, 佑金, 佑锦, 又今, 又巾, 又津, 又瑾, 又进, 又金, 友今, 友劲, 友斤, 友晋, 友津, 友瑾, 友禁, 友觐, 友谨, 友近, 友锦, 右紧, 右金, 姷瑾, 宥津, 宥瑾, 尤今, 尤晋, 尤津, 尤瑾, 尤进, 尤金, 尤锦, 幼晋, 幼津, 幼瑾, 幼进, 幼金, 幼锦, 幽瑾, 幽谨, 幽锦, 悠进, 悠金, 攸津, 攸金, 有今, 有劲, 有尽, 有惍, 有斤, 有晋, 有津, 有琎, 有瑾, 有谨, 有近, 有进, 有進, 有锦, 游今, 游进, 游金, 游锦, 犹金, 猷晋, 猷进, 猷金, 猷锦, 由瑾, 由进, 由金, 由锦, 祐瑾, 诱瑾, 邮金, 邮锦, 酉金, 酉锦, and 釉进