Henry William Stiegel was an 18th-century American glassmaker and entrepreneur, known for his contributions to the glass industry in colonial Pennsylvania. He established the first successful glass factory in the region, producing a variety of glass products, including bottles and window glass. Stiegel's work helped to lay the foundation for the American glass industry. In addition to glassmaking, Stiegel was also involved in ironworks and was a prominent figure in the Lancaster County area. His innovative techniques and business acumen made him a significant player in early American manufacturing, influencing the development of local industries.