Cognomen Tumasi (Tumasi 
) , in the world, is a very rare family name. The cognomen Tumasi is characteristic of Malaysia, where it is a very rare surname, Canada, where it is an extremely rare surname, and India. More prevalently, Tumasi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tumasi | South Africa, Malaysia, United States, India, Canada |