Michael I of Kyiv was a tenth-century prelate who served as the first Metropolitan of Kyiv and all Rus' from 988 until 992. Although historical accounts vary regarding his origins, he is often associated with Bulgaria or Syria. During his leadership, he worked alongside Greek monks to establish the St. Michael's Golden-Domed Monastery and the Mezhyhirskyi Monastery. He is recognized as a saint within the Eastern Orthodox tradition and is remembered for his foundational role in the early church of the region.