Cognomen Forbes-Ffennell (Forbes-Ffennell 
) , around the world, is an extremely rare family name. The last name Forbes-Ffennell is characteristic of Sub-Saharan Africa, particularly South Africa, where it is a very rare surname. Parts of the name also exists independently as a last name Forbes, and a first name Ffennell.
| VARIANT | COUNTRY |
|---|---|
| Forbes-Ffennell | South Africa |