The Queensland Ambulance Service (QAS) paramedic, based on the island, was the first to treat the boy's injuries.
The attack is believed to have occurred at Eurong Beach, a popular holiday spot.
According to 9 News, the boy was left with "severe puncture wounds to his leg and upper body and head injuries".
"The child's parents were woken by their son's cries, which were becoming more distant," paramedic Ben Du Toit told the Sydney Morning Herald.
"The dad got out of the campervan to investigate and found the dingo dragging the toddler away from the campervan.
"They also spotted several other dingoes in the area and near the vicinity, and he immediately ran up and grabbed his son and chased some of the dingoes off."
The Bundaberg-based RACQ LifeFlight Rescue helicopter was sent to the island at 12.40am, and the infant was flown to Hervey Bay Hospital where he is now recovering and in a stable condition with his family by his side.
There have already been a number of alarming dingo attacks on Fraser Island this year alone — in January, a six-year-old boy was hospitalised after being mauled while a French mother and her son were also attacked last month.
AZARIA CHAMBERLAIN
The latest attack is reminiscent of the 1980 tragedy involving two-month-old Azaria Chamberlain.
During the night of August 17 that year, the infant disappeared during a family camping trip to Uluru.
Parents Lindy and Michael Chamberlain claimed she had been snatched by a dingo, although her body was never found.
Lindy Chamberlain was tried for her murder, ultimately spending more than three years behind bars before being released after a piece of Azaria's clothing was found near a dingo lair, opening new inquests.
