Reduplications or hendiadyoins are one of the important elements of the evolution and development of a language. They that appear in the first documents of the Turkish language from the 8th century onwards are a proof that Turkish has undergone inter-word interactions earlier than the 8th century. In this respect, it is an important requirement to identify the reduplications written in Old Turkic scripts and manuscripts. In this article, all the inscriptions and manuscripts written in old Turkish script will be examined and the hendiadyoins used will be determined.