Declan Donnelly married his wife Ali Astall in 2015 but prior to that he had a couple of long-term relationships in the public eye. From his first love when he found fame on Byker Grove through to the fellow presenters he has dated, look back through Dec's surprising relationship history…
WATCH: Get to know more about Ant and Dec in 60 seconds
Dec dated Clare Buckfield – the star of Grange Hill and Two Point Four Children - for 11 years after meeting when they were teenagers. The couple split in 2003, with Dec blaming their busy schedules for the demise of their relationship, and saying at the time that he wouldn't rule out a reconciliation.
Dec dated Clare Buckfield for 11 years
After their split, Dec was linked to stars including TV presenter Sarah Cawood and Sky presenter Diana Stewart, but it was a few years until his next high-profile relationship.
REVEALED: The celeb couples who met at work
In 2009, Dec started dating Sky Sports presenter Georgie Thompson, and the pair were together for two years before he called it quits. Speaking after the breakup Georgie said it had been painful but they remained on good terms, and hinted that Dec wasn't ready to settle down.
Dec dated Georgie Thompson between 2009 and 2011
The Geordie star reportedly had a fling with Ashley Roberts following her appearance on I'm a Celebrity in 2012. Dec made no secret of his crush on the Pussycat Dolls star, and they were close for a while after the show, with Ashley saying of their romance: "We're trying to keep it out of the public eye. We're just getting to know each other." The Don't Cha singer had also previously said: "I'd like to get to know Dec better. It would be nice to go for a drink and a chat."
However, while the romance soon fizzled out, they remained friends and Ashley was a guest at Dec's wedding in 2015.
Ashley Roberts reportedly had a fling with Dec
In 2013, Dec found love with his manager of ten years, Ali Astall. Ali was the manager of Ant and Dec for more than 10 years before she and Dec started being romantically involved. He previously said they had always been close but had been reluctant to start a relationship because of work, and admitted they used to go out for Valentine's Day meals together when they were both single.
The pair were together for a year before Dec popped the question in November 2014, and they married the following August. They are now parents to their daughter Isla, who was born in September 2018.
Revealing that Ali is still their manager, during Ant and Dec's first ever I'm A Celebrity trial, Ant said: "Dec's wife is our manager so she would have signed all of this off!"
Watch: Shocking video from 2003 shows Ant McPartlin and Declan Donnelly in blackface
Like this story? Sign up to our newsletter to get other stories like this delivered straight to your inbox.