Surname ไอ้ (Ai 
, Bastard 
, ไอ้) , in the entire world, is a widespread cognomen. The cognomen ไอ้ is habitual in Malaysia, where it is quite a common surname, Macao, and China (explore the name in all countries). Measured by absolute frequency, this name is the most popular in China, Malaysia, and Indonesia. Also, ไอ้ is the forename as well as the last name.