Family name Bayi-Bayi (Bayi-Bayi 
) , around the globe, is an extremely rare cognomen. The cognomen Bayi-Bayi is characteristic of Sub-Saharan Africa, particularly South Africa, where it is an extremely rare surname. Parts of the name also exists independently as a last name Bayi, and a last name Bayi.
| VARIANT | COUNTRY |
|---|---|
| Bayi-Bayi | South Africa |