Hilarion of Kyiv was an 11th-century prelate and scholar who served as the first native metropolitan of Kyiv and all Rus'. Born around 990, he functioned as a presbyter in the princely residence of Berestove before being elevated to the metropolitan see. His appointment, supported by Grand Prince Yaroslav the Wise, challenged the long-standing Byzantine tradition of appointing Greek prelates to the position. Although his tenure was relatively brief, he remains a significant historical figure due to his influential literary contributions and his role in the early church hierarchy.