Cognomen Важди (Wajdi 
, Важди 
) , in all the world, is a common surname. The family name Важди is characteristic of Tunisia, where it is quite a common surname, Morocco, where it is quite a rare surname, and Israel. Not in comparison with a country's population, it is commonest in Tunisia, Indonesia, and Morocco. More frequently, Важди is the forename as well as the last name.