Family name Mercia-Bonalvie (Mercia-Bonalvie 
) , around the globe, is an extremely rare last name. Predominantly, Mercia-Bonalvie is the forename as well as the last name. Parts of the name also exists independently as a first name Mercia, and a first name Bonalvie.
| VARIANT | COUNTRY |
|---|---|
| Mercia-Bonalvie | Democratic Republic of the Congo |