In the book holes what is real name?

In the book *Holes* by Louis Sachar, the main character, Stanley Yelnats IV, is never given a real name. The name "Stanley Yelnats" is actually a nickname, a result of his great-great-grandfather's unfortunate accident involving a pig.

The reason why he doesn't have a real name is never explicitly stated in the book, but it's likely a deliberate choice by Sachar to highlight Stanley's sense of being "un-named," or invisible, in the world.