Family name هایدی (Heidi 
, هایدی 
, Heidija) , all over the world, is a common surname. The cognomen هایدی is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is quite a rare surname, Honduras, and Mexico. In absolute terms, this name is the most popular in Latin America and the Caribbean, particularly Mexico, Venezuela, and Honduras. Much more prevalently, هایدی is the forename as well as the last name.