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In the world, Руис (Ruiz , Ruis , Ruíz ) is quite a rare unisex given name. The given name Руис is habitual in Latin America and the Caribbean, particularly Guadeloupe, where it is quite a common female name, Guatemala, where it is quite a rare epicene name, and Panama. In absolute terms, it is commonest in the Democratic Republic of the Congo, Philippines, and China. More frequently, Руис is the last name as well as the forename.
Руис is also a name for the fictitious and mythical characters: Ruiz , the operatic character in the opera Il trovatore by Giuseppe Verdi; Manrico's henchman.