Family name R-M (R-M 
) , globally, is a rare last name. The surname R-M is habitual in Bolivia, where it is a rare surname, Algeria, and Morocco. Measured by absolute frequency, it is commonest in Northern Africa, particularly Algeria, Morocco, and Egypt. Also, R-M is the forename as well as the last name. Parts of the name also exists independently as a first name R, and a first name M.