Seven Turkish letters ( Ã , Ä , I , Ä , Ã -- , Å , and Ã ) are in the Turkish alphabet . The Turkish alphabet is a Latin-based alphabet used for writing the Turkish language , consisting of 29 letters , a certain number of which ( Ã , Ä , I , Ä , Ã -- , Å , and Ã ) have been modified from their Latin originals for the phonetic requirements of the language .