What was the main administrative language of the Ottoman Empire?

The main administrative language of the Ottoman Empire was Ottoman Turkish. It was the formal language of the court, military administration, government records, and imperial decrees.

Ottoman Turkish was a highly literary register of the Turkish language, written in a variant of the Perso-Arabic script. It absorbed extensive vocabulary and some stylistic conventions from Persian and Arabic, especially in official, religious, and scholarly writing. The language developed into a particularly elaborate form among court officials and educated elites.

The empire was multilingual, so Ottoman Turkish was not the only important language. Arabic dominated religious and much legal scholarship, while Persian was influential in poetry and early court culture. Greek, Armenian, Ladino, Kurdish, Arabic dialects, Slavic languages, and many others were spoken across the empire.

A common mix-up is to answer simply “Turkish.” That is broadly understandable, but Ottoman Turkish is the historically precise name for the administrative register used by the empire. After the empire ended, language reforms in the Turkish Republic replaced the Ottoman script and many Arabic- and Persian-derived terms.