Cognomen ראו (Rao 
, Rau , Raoux 
) , worldwide, is a prevalent last name. The cognomen ראו is habitual in United Arab Emirates, where it is a common surname, Fiji, and Oman, where it is quite a common surname (explore the name in all countries). In absolute terms, the name is most common in India, China, and Germany. Much less frequently, ראו is the forename as well as the last name.