Ms Carneiro, who is suing Chelsea and team manager Jose Mourinho for constructive dismissal, looked radiant in a sleeveless wedding dress with lace detailing and a train.
The 42-year-old Gibraltar-born sports physician carried a bouquet of white roses and wore her hair in a classic bridal up-do with a long veil.
As the couple left the church, Mr De Carteret, whose mint-green waistcoat matched the dresses of Ms Carneiro’s bridesmaids, could not keep his eyes off his stunning bride.
Both Mr and Mrs beamed as they exited the St Patrick’s Church, in London’s Soho after the private service, and kissed for the cameras.
The wedding between the ex-Chelsea physio and her business consultant and polar explorer husband was attended by former players, including goalkeeper Mark Schwarzer, who now plays for Leicester City.
Ms Carneiro was born in Gibraltar to a Spanish father and an English mother and studied medicine at the University of Nottingham.
She then headed to the Australasian College of Sports Physicians before completing an MSc in Sport and Exercise at London’s Queen Mary University.
After first working for West Ham United, she joined Chelsea in 2009 as reserve-team doctor, and two years later, former Blues boss Andre Villas-Boas brought her into the first-team fold.
Before experiencing the men’s game, she worked under Hope Powell as part of the doctors training with the England women’s football team.
Carneiro, who supports Spanish side Real Madrid, has spoken about her love of other sports, saying she enjoyed ballet and riding as a teenager before focusing her attention on football. She also likes to surf, something she learnt in Australia, and samba.
As one of the few female top sports physios in the world, Carneiro has gained quite a following, and has previously revealed that 80 per cent of her fan mail comes from young girls keen to follow in her footsteps.
She has also spoken of her own dismal role models while growing up, criticising the lack of powerful, independent female physicians:
She told The Gibraltar Magazine in 2009: ‘In every programme I’ve ever watched in my life about female doctors, the woman has been hyper-sexualised – she gets off with Tom Cruise – and it’s all happy endings or she’s not present. Or she’s a lesbian.’
Ms Carneiro’s new husband, Mr De Carteret, is a polar explorer, motivational speaker and business consultant.
Mr De Carteret has led dozens of expeditions on several continents and was the first British person to be allowed to compete in the most northern dog sled race in the world.
The former Chelsea doctor quit her role at the club after Jose Mourinho publicly criticised her handling of winger Eden Hazard’s injury in the final minutes of the 2-2 draw with Swansea City on August 8.
Although Hazard is reluctant to get involved in the case, the Chelsea winger can be compelled to give evidence at an employment tribunal, it was reported yesterday.
It means Hazard would have to confirm whether or not he asked referee Michael Oliver for treatment before Ms Carneiro and physio Jon Fearn raced on to the pitch at Stamford Bridge.
Television footage of the incident appeared to show Hazard asking for medical attention, but the Chelsea winger is the only person who can confirm that this conversation took place.
Ms Carneiro claims her position at the club was made untenable following Mourinho’s post-match comments and she has failed to reach a financial settlement with Chelsea.
That triggered last week’s decision to serve formal notice on Chelsea’s legal team that she intends to resolve the matter at an employment hearing.
Carneiro was taken off first-team duties immediately after the Swansea game.
Mourinho has already been cleared by an FA investigation, which looked into claims he used discriminatory language during his exchange with Carneiro.