Cognomen Didieu (Didieu 
) , around the world, is a very rare last name. The surname Didieu is characteristic of the United States, where it is an extremely rare surname, Canada, and Mexico. More frequently, Didieu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Didieu | Democratic Republic of the Congo, Canada, United States, Brazil, Mexico |