Last name ريب (Rip 
, Rep , Reeb 
) , around the world, is a common cognomen. The cognomen ريب is habitual in Reunion, where it is quite a common surname, Slovenia, and Croatia, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Germany, and Indonesia. Very seldom, ريب is the forename as well as the last name.