The boy, identified as F E, was detained at his home in western Tekirdag province after someone called the police emergency line to complain about his Facebook posts. The court in Tekirdag placed him in pre-trial detention. No other details were given on the content of the posts.
Critics say Erdogan has become increasingly authoritarian since becoming president in August 2014 after more than a decade as prime minister and the number of prosecutions for insulting him have risen.
Last December, a 17-year-old was arrested in his classroom and held for several days on the same charge and given an 11-month suspended sentence.
In November, two of Turkey’s most prominent journalists — Cumhuriyet newspaper’s editor-in-chief Can Dundar and its Ankara bureau chief Erdem Gul – were arrested on spying charges in a case that has caused global concern.