The 39-year-old comedienne denied rumours claiming that BBC bosses want her to replace Alesha Dixon, who has joined Britain's Got Talent.
Her rep said in a statement: "I can confirm that there is no truth in the rumour that she is being lined up to judge Strictly Come Dancing."
The Daily Mail quoted an insider as saying earlier today: "The producers want someone really startling.
"Miranda is seen as a brilliant left-field choice. She totally loves the show and is incredibly popular with the viewing public.
"We think she could bring something completely different to the panel because of her wit."
Ex-Strictly professional Karen Hardy remains the bookmakers' favourite to fill the vacancy.
Former judge Arlene Phillips has also been backed by fans to make a return to the programme.