William Tierney Clark was an English civil engineer and architect, best known for designing the famous Széchenyi Chain Bridge in Budapest, Hungary. Born in 1783, he played a significant role in the development of bridge engineering during the 19th century, contributing to various projects across Europe. Clark's work on the Chain Bridge, completed in 1849, showcased innovative techniques and materials for its time. His designs emphasized both functionality and aesthetic appeal, influencing future bridge construction. In addition to his engineering achievements, he was also involved in the design of other notable structures, further establishing his legacy in civil engineering.