According to reports, the boy was attacked by the lion in Lephalale at 12:45 on Saturday.
Kristian Prinsloo was rushed to a local hospital for emergency treatment before being transferred to Muelmed.
Chris Botha of Netcare 911 said the boy was seriously injured.
“At 17:44 on Saturday the Netcare 1 medical helicopter was activated to Laphelale to airlift a boy aged 11 that was seriously injured after he was bitten by a lion,” said Botha.
“He was stabilised for the flight, then airlifted under the constant care of two emergency care practitioners to a specialised hospital in Pretoria for the care that he required.”