Family name Osei-Kwarteng (Osei-Kwarteng 
) , throughout the world, is a rare surname. The family name Osei-Kwarteng is characteristic of Ghana, where it is a rare surname, and the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Osei, and a last name Kwarteng.
| VARIANT | COUNTRY |
|---|---|
| Osei-Kwarteng | United States, Ghana |