Surname Airu (爱茹 
, 爱如 , Airu 
) , around the world, is quite a rare cognomen. The last name Airu is habitual in Finland, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore. In absolute terms, this name is the most popular in China, Finland, and Malaysia. More prevalently, Airu is the forename as well as the last name.