The 18-year-old had been fighting for his life in hospital as thousands took to social media to offer support to his devastated family.
Conor had been in a coma since his car struck a tree in the early hours of Saturday, September 7.
He was driving late at night after being held up for several hours at the Dartford Crossing, due to a security scare, on his way home from work.
Relatives flew out to be at Conor’s bedside at Addenbrooke’s Hospital in Cambridge throughout this week as the young man was moved to a specialist neurological unit.
It emerged that the keen GAA player, described as “bubbly, very athletic and full of fun” by friends, had severe brain injuries after an MRI scan last week.
His father Hugh told The Irish Post on Monday that Conor needed “a miracle” to survive his
The 18-year-old, who hails from the Gaeltacht village of Loughanure, recently moved to Britain after completing his Leaving Cert.
He was working as a labourer for his father’s Doncaster-based tunnelling company and planned to stay here for a year before returning home to go to college.
Members of his home GAA club, Naomh Muire, sent their condolences to the Boyle family this morning.
“Words can’t describe how we feel this morning in the club,” the club said on Facebook.
“The news we prayed and hoped would never come has hit us and it’s a terrible feeling to lose one of our… own so young.
“To Sheila, Hugh and the boys and extended family we extend our deepest sympathy.
“RIP Wee Conor Boyle you were one of our own and you will be deeply missed but will be remembered always by us.”
Conor will be brought home to Donegal for burial next week.