The 39-year-old actress, who is currently working as a judge on Five talent show Don't Stop Believing, played Melanie Owen in the Albert Square serial between 1998 and 2002.
She told Holy Soap: "I've never officially been asked. I wouldn't see it as a bad thing but, at the moment, it's not something that I'm looking into."
However, the star added: "I don't know how Mel would return because there's no-one there for her to return to. She doesn't really know anyone apart from Ian Beale and Phil Mitchell. So unless she was coming back to see one of them..."