Abraham of Rostov was an eleventh-century monk and archimandrite who lived in the regions of Galich and Rostov Veliky. Born Abercius, he reportedly turned to Christianity in his youth after being healed from childhood illnesses through prayer. He later became a monk at Valaam before settling near Lake Nero. He is primarily recognized for establishing the Bogoyavlensky Monastery and for his efforts in converting local pagan populations to the Christian faith through his preaching.