Cognomen Райу (Raju 
, Rayu 
, Raiu 
) , globally, is a widespread surname. The family name Райу is characteristic of Western Asia, particularly Kuwait, where it is a common surname, Oman, and Qatar (explore the name in all countries). Measured by absolute frequency, it is commonest in India, Bangladesh, and Saudi Arabia. More frequently, Райу is the forename as well as the last name.