Surname Ainam (Harina 
, Ainam 
, ไอน้ำ) , around the world, is quite a rare cognomen. The surname Ainam is habitual in Philippines, where it is quite a rare surname, Latvia, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, the name is most common in Philippines, India, and Indonesia. Also, Ainam is the forename as well as the last name.