Istanbul Turkish is established as the official standard language of Turkey. Dialectal variation persists, in spite of the levelling influence of the standard used in mass media and the Turkish education system since the 1930s. Academically, researchers from Turkey often refer to Turkish dialects as ağız or şive, leading to an ambiguity with the linguistic concept of accent, which is also covered with these same words. Projects investigating Turkish dialects are being carried out by several universities, as well as a dedicated work group of the Turkish Language Association. Work is currently in progress for the compilation and publication of their research as a comprehensive dialect atlas of the Turkish language.

The standard dialect of the Turkish language is İstanbul. Rumelice is spoken by immigrants from Rumelia, and includes the distinct dialects of Deliorman, Dinler, and Adakale, which are influenced by the theoretized Balkan linguistic union. Kıbrıs is the name for Cypriot Turkish and is spoken by the Turkish Cypriots. Edirne is the dialect of Edirne. Ege is spoken in the Aegean region, with its usage extending to Antalya. The nomadic Yörük tribes of the Mediterranean Region and the Balkan peninsula also have their own dialect of Turkish.

Güneydoğu is spoken in the southeast, to the east of Mersin. Doğu, a dialect in Eastern Anatolia, has a dialect continuum with Azeri, particularly with Karapapak dialects in some areas. The Central Anatolia region speaks Orta Anadolu. Karadeniz, spoken in the Eastern Black Sea Region and represented primarily by the Trabzon dialect, exhibits substratum influence from Greek in phonology and syntax. Kastamonu is spoken in Kastamonu and its surrounding areas. The Hemşinli dialect, known as Hemşince, is spoken by the western group of Hamshenis around Rize, influenced by Armenian. Karamanlıca is spoken in Greece, where it is also named Kαραμανλήδικα (Karamanlidika). It is the literary standard for Karamanlides.