Cognomen سونكو (Sonko 
, Sonku 
, سونكو) , around the globe, is a common surname. The cognomen سونكو is characteristic of Sub-Saharan Africa, particularly Gambia, where it is a common surname, Senegal, where it is quite a common surname, and Gabon, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly Senegal, Gambia, and Kenya. Much less frequently, سونكو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sonko | Uganda, Kenya, Japan, Senegal, Gambia |
| Sonku | United States, Turkey, India, South Africa |