Family name シャイ (Shai 
, Chay 
, Shy ) , all over the world, is a widespread cognomen. The cognomen シャイ is habitual in Myanmar, where it is a common surname, Guatemala, where it is quite a common surname, and Lesotho (explore the name in all countries). In absolute terms, this name is the most popular in Myanmar, Guatemala, and South Africa. Very seldom, シャイ is the forename as well as the last name.