BBC Radio 2 DJ Evans recently called for Van Outen to be voted out of the competition because of her past dance experience on the West End.
Professional dancer James Jordan dismissed any claims that his partner has an unfair advantage, and that other celebrities have even more experience.
He told The Sun: "It all started from what Chris Evans said on Radio 2 about how Denise shouldn't be in the show because she is dance-trained. She left stage school age 13!"
"Lisa Riley is dance-trained at stage school, so are Dani Harmer and Kimberley Walsh. If you want audience reaction, do back-flips - and Louis Smith has that advantage.
"Everyone is saying Denise is a professional dancer. I can assure you she is not because I am the one who trains with her. The reason we put in so many hours is because we have to."
Denise Van Outen added: "I've spoken to Chris Evans and he said that wasn't what he said. But he has caused a little bit of damage because people do think that.
"Yet if you look at the shows I have been in, in the West End, I haven't danced in them. The only show I did dance in, and it was only a bit at the end, was Chicago - and that was in 2001."
She continued: "Kimberley has just finished Shrek and she danced in that. She admits to me it's unfair what has been said about me. I don't find dancing easy at all. If I were a professional dancer it would take three hours to learn a dance - and it takes me three days!
"Every time we get good scores it is because of hard work, not previous dance training. I am definitely unfairly seen by the public and it could stop me winning.
"My message to the voters would be to judge me fairly on the night in the way it should be judged - on the dancing - and to be aware of how hard I've worked."
Van Outen fell into the bottom two for the first time at the weekend, but was saved from elimination at the expense of Nicky Byrne.
Strictly Come Dancing continues on Saturday (December 15) at 6.30pm on BBC One.
Watch Denise Van Outen and James Jordan do the jive and quickstep on Strictly Come Dancing below: