The pair, who recently fronted their own ITV2 reality series, had been linked to the jungle this autumn.
But the duo have seemingly poured cold water on the idea - for now.
Chris told ITV's Lorraine: "There's been a lot of speculation as there always is with press stuff, but no. It's only something you consider if you have a cemented offer – we haven't."
Kem added: "We've seen it everywhere, 'Kris and Kem are going in the jungle' – people want us to go in as a pair."
While I'm A Celebrity may be out of the question, it has been officially confirmed that Kem will be competing in ITV's Dancing On Ice in 2017.
Kem, who won Love Island 2017 with partner Amber Davies, said: "I still can't believe I'm going to be on Dancing on Ice!
"Never in my wildest dreams did I ever think I'd be strapping on a pair of skates and dancing in some lycra.
"Anyone who knows me will know how competitive I am, so I'm going to work very hard to stay on my feet! I can't wait to get my skates on."
Meanwhile, as for who could end up on I'm A Celebrity, rumoured names include The Saturdays' singer Vanessa White, Hollyoaks hunk Jamie Lomas, former rugby player Ben Cohen MBE, Tattoo Fixers star Paisley Billings and The Only Way Is Essex's Kate Wright have all been linked to the line up.
Made In Chelsea's Georgia Toffolo is also said to have signed up, alongside Coronation Street actress Jennie McAlpine.
And although Chris and Kem have ruled themselves out, other Love Island stars could be in the mix.
I'm A Celebrity Get Me Out Of Here launches on November 19 on ITV.