The superhero often called “the Dark Knight” is Batman.

Who is the Dark Knight?

  • Batman , whose real name is Bruce Wayne , is a DC Comics vigilante who battles crime in Gotham City, usually at night and in a dark‑colored costume, which is why fans and the in‑universe media nicknamed him the “Dark Knight.”
  • The sobriquet “Dark Knight” first appeared in early Batman stories and has since become one of his most iconic nicknames, used in comics, movies, and promotional material.

Why “Dark Knight” stuck

  • The phrase plays on the contrast between his shadowy, fear‑based persona and the idea of a noble knight defending the innocent, reinforcing his role as a morally complex, brooding hero rather than a brightly colored traditional superhero.
  • It gained even wider popularity through media such as the “The Dark Knight” film trilogy (starting with Batman Begins and including The Dark Knight in 2008) and long‑running comic arcs like Batman: The Dark Knight Returns.

So, in short: “which superhero is often called the dark knight?” → Batman.

Information gathered from public forums or data available on the internet and portrayed here.