Surname R-One (R-One 
) , in all the world, is a very rare cognomen. The last name R-One is habitual in Algeria, where it is a very rare surname, France, and Indonesia. Also, R-One is the forename as well as the last name. Parts of the name also exists independently as a first name R, and a last name One.
| VARIANT | COUNTRY |
|---|---|
| R-One | France, Indonesia, Algeria |