Cognomen Mark-John (Mark-John 
) , throughout the world, is an extremely rare family name. The cognomen Mark-John is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is an extremely rare surname. More frequently, Mark-John is the forename as well as the last name. Parts of the name also exists independently as a first name Mark, and a first name John.
| VARIANT | COUNTRY |
|---|---|
| Mark-John | Philippines, United Kingdom, South Africa, United States, Nigeria |