Cognomen Роналду (Ronaldo 
, Ronaldu 
, Runaldu 
) , globally, is a common surname. The last name Роналду is characteristic of Nicaragua, where it is quite a common surname, Egypt, and Algeria (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Egypt, Indonesia, and Algeria. More frequently, Роналду is the forename as well as the last name.