Mesenchymal hamartoma of liver is the second most common benign liver tumor in children after hepatoblastoma. First described in 2006 as multicystic biliary hamartoma, it generally presents as large multicystic mass in less than three years of age.We report one such case in a 3 year old male child who came with history of fever and rash and was incidentally diagnosed with a cystic mass in the liver. Partial hepatectomy was done which on microscopy revealed epithelial structures in loose connective tissue stroma along with cystically dilated spaces lined by columnar and flattened epithelial cells, typical of Mesenchymal Hamartoma of liver. We are presenting this case because of its rarity.