Family name Dieufait (Dieufait 
) , globally, is an extremely rare last name. The surname Dieufait is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more frequently, Dieufait is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dieufait | Brazil, United States, Dominican Republic, Democratic Republic of the Congo, France |