Family name Seyni (Seyni 
, سيني 
) , in the world, is quite a rare cognomen. The last name Seyni is habitual in Sub-Saharan Africa, particularly Niger, where it is quite a rare surname, Togo, and Senegal. In absolute terms, it is commonest in Sub-Saharan Africa, particularly Niger, Ghana, and Togo. Also, Seyni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seyni | Niger, Senegal, Togo, Ghana, Democratic Republic of the Congo |
| سيني | Iran, Iraq, Yemen, Sudan |
|
aminatou seyni Nigerien athletics competitor, NE (b. 1996) |
|
| abdoul razak seyni Nigerien footballer, NE (b. 1990) |
|