Cognomen Jigan (Jigan 
, 继乾 , Жиган 
) , throughout the world, is quite a rare surname. The cognomen Jigan is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia. In absolute terms, it is commonest in India, Ukraine, and Russia. Also, Jigan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jigan | Nigeria, France, China, Malaysia, India |
| 继乾 | China |
| Жиган | Russia, Kazakhstan, Ukraine, Kyrgyzstan, Belarus |