Chef Martin Carr, 38, was on a life support machine and had been given just days to live following the attack by a man thought to be a complete stranger last month.
His sister, Lorraine Carr, 39, launched a campaign to charter an air ambulance to bring Mr Carr home to die surrounded by his family and friends.
Mr Carr had just quit his job in an Italian restaurant to start another as a head chef at a company showroom but had not yet officially signed his contract – leaving him without medical insurance cover.
Ms Carr, a mother of three, needed £45,000 to transport her brother home to East Kilbride.
However, he died alone on Sunday in Rashid Hospital after Ms Carr, her father Jack and stepmother Jill returned to Scotland to start raising the necessary funds.
Ms Carr posted a message on their fundraising site to let supporters know of her brother's death and asked all fundraising to stop. A total of £7380 had been raised, she said.
The family has offered to refund all donations or send them to a charity close to her brother.
Ms Carr also thanked everyone who donated and for hundreds of messages of support received after Mr Carr was injured.
She said: "Dear all, sadly today we received the news Martin peacefully passed away. I would like to thank everybody again for their support and generous donations. While the family are still coming to terms with the news, we would ask you make no further donations.
"For those of you who have kindly donated to Martin's cause if you so wish, your monies can be repayed to you or alternatively, let us know if you would prefer your donations be passed on to a charity close to Martin's heart."
It is understood Mr Carr was attacked by a complete stranger just seconds after he got out of a taxi in Dubai on Thursday, July 12.
Police said the taxi driver saw Mr Carr being approached by the man and an argument began before Mr Carr was allegedly pushed, cracking his head off the pavement as he fell. He never regained consciousness and he remained in a coma until he died, the family was told.
It is understood a man has been arrested in connection with Mr Carr's death and charges are due imminently. It is not clear if he will now be charged with murder.
Ms Carr, from Newlandsmuir, East Kilbride, said: "Martin was the quietest, most likeable man you could ever meet. We've no idea why this happened to him.
"It's been very hard getting any information out of the police. But we do know they've arrested someone for it and we've been told he'll be charged soon."