Hugh I of Ponthieu was a nobleman in the 10th century, known for his role as the Count of Ponthieu, a region in northern France. He belonged to the House of Ponthieu, which played a significant part in the feudal system of the time. His leadership helped establish the region's importance in the political landscape of medieval France. Hugh I was the son of Hugh the Great, a prominent figure in the early Capetian dynasty. His lineage connected him to various influential families, which aided in forming alliances and securing power. His reign contributed to the development of the County of Ponthieu and its eventual integration into the larger French kingdom.