Surname Douceur (Douceur 
, Duser 
) , in all the world, is a rare last name. The last name Douceur is habitual in Haiti, where it is quite a rare surname, Cameroon, where it is a rare surname, and Algeria. Also, Douceur is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Douceur | France, Democratic Republic of the Congo, Haiti, Cameroon, Algeria |
| Duser | Germany, Turkey, Argentina, United States, India |