Surname Raiva (Raiva 
, Райва 
) , throughout the world, is a rare last name. The surname Raiva is habitual in Mozambique, where it is quite a rare surname, Lithuania, where it is a rare surname, and Thailand. Measured by absolute frequency, it is the most numerous in Mozambique, Thailand, and Indonesia. Also, Raiva is the forename as well as the last name.