Cognomen Sepon (Sepon 
) , in all the world, is quite a rare family name. The cognomen Sepon is characteristic of Western Asia, particularly Oman, where it is quite a rare surname, Qatar, and United Arab Emirates, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Bangladesh, Saudi Arabia, and Oman. Likewise, Sepon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sepon | United Arab Emirates, Saudi Arabia, Bangladesh, Oman, Indonesia |