The Turkish midfielder is found guilty of violent conduct after pushing Euro 2012 referee Cuneyt Cakır in Gala's 3-2 TFF Super Kupa victory over Fenerbahce
The midfielder, who has made three international appearances for Turkey, was dismissed for his actions amid Fenerbahce's controversial 65th-minute equaliser. In addition to his suspension, he has also been fined 20,000 Turkish Lira (€9,000).
Galatasaray manager Abdurehim Albayrak said that he thought the punishment to be harsh: "We accept that, but 11 games is really is not right. We will [go] to the Board of Arbitration to appeal the sentence."
Galatasaray and Fenerbahçe were also fined 75,000 Turkish Lira (€33,800) and 15,000 Turkish Lira (€6,700) respectively after their fans were found guilty of interrupting the match by throwing fireworks and missiles onto the field of play.
Trabzonspor Chairman Sadri Sener was also sentenced to 21 days of deprivation of rights as a result of unsporting behaviour.
The Süper Lig gets under way this weekend with reigning champions Galatasaray facing newly-promoted Kasimpasa.