Arpan Doshi graduated with his Bachelor of Medicine and Bachelor of Surgery degree from the University of Sheffield on Monday - aged 21 and 335 days - and is due to start work as a junior doctor in York next month.
He will beat the previous record for the youngest doctor to start work in the country by 17 days.
"I didn't realise I was the youngest person to qualify until a friend checked on the internet. I haven't even told my parents yet but I know they will be very proud," the Sun quoted India-born Doshi as saying.
Then his mechanical engineer father, Bharat, got a job in Aix en Provence as part of an international Fusion project and the whole family moved to France.
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Arpan, who speaks English, Hindi and Gujarati, continued his education at an English speaking International School.
"The following year I realised that I already knew a lot of what was being taught so I skipped a year," he recalls.
He started applying to universities just weeks after his 17th birthday and despite a rejection from one university, three others offered him places.
He received financial support from his parents and also took part-time jobs as a lunch supervisor at a local school and in the careers service to fund his degree.
"My dream is to become a heart surgeon but it is a very competitive field. It is not really a surprise I have ended up as a doctor," said Doshi.
The previous youngest doctor to qualify was Rachael Faye Hill, who received her medical degree from Manchester University when she was 21 and 352 days in 2010.