Nightwing
Nightwing is a fictional superhero appearing in American comic books published by DC Comics. The character has appeared in various incarnations, with the Nightwing identity most prominently being adopted by Dick Grayson when he moved on from his role as Batman's vigilante partner Robin.
Alternative versions of Barbara Gordon
Barbara Gordon appears in the fifth issue of the comic book continuation of the television series "Smallville". In "Smallville Season Eleven," she is Nightwing in this continuity instead of Batgirl or Oracle. She does however, joke about her mainstream code name, stating that she chose Nightwing instead because she hated how Batgirl sounded. She later introduces her boyfriend Richard "Dick" Grayson to Batman as her replacement after she is selected to be a Blue Lantern. It is also implied that, prior to becoming Batman's partner as Nightwing, she dressed in a female version of her mentor's costume at a costume ball, a nod to the original character.