Family name Hartwell-Beninson (Hartwell-Beninson 
) , around the globe, is an extremely rare surname. The last name Hartwell-Beninson is characteristic of Northern Europe, particularly the United Kingdom, where it is an extremely rare surname. Parts of the name also exists independently as a last name Hartwell, and a last name Beninson.
| VARIANT | COUNTRY |
|---|---|
| Hartwell-Beninson | United Kingdom |