William Selim Hanna (1896–1980), born in Assiut, Egypt وليم سليم حنا, was an Egyptian Minister of Housing.
He then traveled to England and joined the University of Birmingham, where he earned a bachelor's degree with first place honors in Civil Engineering in 1923.
When the Research Laboratory of Concrete was created at the Faculty of Engineering in Cairo University in 1932 with the support of Cebu Tariv, an engineering professor at Princeton University, Hanna became its director.
In 1933 he was appointed Director of the Research Laboratory for Mechanics and Foundations Education.
After this post, Hanna worked as a consultant in his own office, in addition to serving as a full-time professor at the Faculty of Engineering of Cairo University.