Last name ใอ่ (So 
, ใอ่) , in all the world, is a widespread surname. The family name ใอ่ is characteristic of Hong Kong, where it is a widespread surname, British Virgin Islands, where it is a common surname, and Cayman Islands (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Hong Kong, Egypt, and China. Likewise, ใอ่ is the forename as well as the last name.