Family name リバー (River 
, リバー 
) , across the world, is a common last name. The family name リバー is habitual in Marshall Islands, where it is quite a common surname, El Salvador, where it is quite a rare surname, and Puerto Rico. Measured by absolute frequency, this name is the most popular in Indonesia, the United States, and Myanmar. Also, リバー is the forename as well as the last name.