Ronda Rousey might not be the only ass-kickin' legend at WrestleMania ... 'cause Mike Tyson says he's down to return to the WWE ring!!!
Iron Mike dropped the bombshell at the 'Kids' Choice Awards' over the weekend ... telling WWE interviewer Cathy Kelley that he'd be pumped to get a call back from Vince McMahon.
"I'm always willing to come back. I love the WWE ... I'd love to be back," Tyson told Kelley.
You might remember -- Iron Mike unleashed hell at WrestleMania 20 years ago .