The radio DJ and his professional partner Angela Egan saw off competition from Faye Brookes, who finished second, and won the public vote during Sunday’s final.
The pair performed a Bolero routine for their final skate, which was inspired by judges Jayne Torvill and Christopher Dean’s 1984 Winter Olympics figure skating performance.
After being crowned the winner, Jay said: “That is mental, thank you so much.”
Previously eliminated contestants included Rebekah Vardy, former skier Graham Bell and actor Jason Donovan
/ PABrookes said: “All I wanted to do was get here.
“I did it as a personal challenge and it couldn’t have gone to a better guy.”
Earlier in the final former athlete Colin Jackson was voted out of the competition by the public, despite earning a perfect score for both of his performances.
Jay and Brookes each earned one perfect score during the programme.
The final also saw Torvill and Dean perform together.
Previously eliminated contestants including media personality Rebekah Vardy, former skier Graham Bell and actor Jason Donovan took to the ice for a final time for a group routine during Sunday’s final.
The Dancing On Ice final was brought forward after injury and illness forced a number of contestants to withdraw.
Emmerdale star Joe-Warren Plant and comedian Rufus Hound both had to leave after testing positive for coronavirus.
Reality TV star Billie Shepherd, singer and actress Denise Van Outen and actor Jason Donovan had to pull out of the series due to injury.
