DC Entertainment, the company that owns Batman, has swooped down to block Rihanna from trademarking her real first name — Robyn — saying it’s too similar to the superhero’s trusty sidekick, Robin.

The “Rude Boy” singer doesn’t look a thing like the Boy Wonder — and their names are spelled differently — but DC wants to stop her company from staking a claim to her name, according to a complaint filed in the US Patent and Trademark Office May 11.

The name is “virtually identical” to the crime-fighting comic book character and “consumers are likely to be deceived,” DC Comics, a division of Warner Brothers, said in the filing.

Got the drop at NY Post . . .