We call Oghuz Turkish spoken from Central Asia to Baghdad, the capital of the Abbasid Empire, since 11th century, as the Western Turkic. This period is divided into two branches in time. One of them is the Eastern Oghuz branch covering Eastern Anatolia and Azerbaijani and the other one is the Western Oghuz branch covering Ottoman field. The Eastern Oghuz branch covering Eastern Anatolia and Azerbaijani, and the Western Oghuz branch covering Ottoman field are represented by a single written language named as “Western Turkish” till 16th Century. Azerbaijan and the Ottoman writing languages separated from each other in the 16th century as a result of the fact that the Azerbaijan territory was dominated by Karakoyunlu and Akkoyunlu in the 15th Century and Safavid Empire in the 16th century. For that reason, Western Turkic reaches the present day from the 16th century with two writing languages including some phonetic and morphologic differences. Although the East Anatolian dialects have been in the Western Oghuz branch, they still have the traits of the Eastern Oghuz branch in terms of phonetics and morphology. In studies of language products in the provinces of Eastern Anatolia it is seen that the dialects of the region are in the domain of Azerbaijan Turkish. So in this article, the studies of the dialects of the Eastern Anatolia Region (Erzurum, Elazığ, Erzincan, Kars, Iğdır, Ardahan, Muş, Bitlis ve Van) are examined; and the phonetic and morphological similarities of this studies with Azerbaijani Turkic are identified.