Cognomen Williams-Balthazar (Williams-Balthazar 
) , all over the world, is an extremely rare surname. The last name Williams-Balthazar is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Williams, and a last name Balthazar.
| VARIANT | COUNTRY |
|---|---|
| Williams-Balthazar | United States |