Across the world, Osei-Hardiman (Osei-Hardiman 
) is an extremely rare unknown gender first name. Predominantly, Osei-Hardiman is the last name as well as the forename. Parts of the name also exists independently as a last name Osei, and a last name Hardiman.
| VARIANT | COUNTRY |
|---|---|
| Osei-Hardiman | United States |