Cognomen Сеыди (Seydi 
, Сеыди 
) , in the world, is a common last name. The cognomen Сеыди is characteristic of Senegal, where it is quite a common surname, Honduras, and Nicaragua, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Senegal, Honduras, and Mexico. Also, Сеыди is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seydi | Turkey, Mexico, Honduras, Senegal, France |
| Сеыди | Russia |