Robin is the alias of several superheroes appearing in American comic books published by DC Comics. The character was originally created by Bob Kane, Bill Finger, and Jerry Robinson, to serve as a junior counterpart and the sidekick to the superhero Batman. The characters first incarnation, Dick Grayson, debuted in Detective Comics #38 (April 1940) ).
There have been several characters who have taken on the mantle of Robin over the years, including Dick Grayson, Jason Todd, Tim Drake, Stephanie Brown, and Damian Wayne.
Therefore, "Robin" is not a real name, but rather an alias used by several characters in the DC Comics universe.