Haim Hanani (Hebrew: חיים חנני) ((1912-09-11)11 September 1912 as Chaim Chojnacki– 8 April 1991)[1] was a Polish-born Israeli mathematician, known for his contributions to combinatorial design theory, in particular for the theory of pairwise balanced designs and for the proof of an existence theorem for Steiner quadruple systems.
He emigrated to the British Mandate of Palestine, later to become Israel, in 1935 and in 1938 received the first Ph.D. in Mathematics from the Hebrew University of Jerusalem.
In 1955 he was appointed to the faculty at Technion Institute of Technology and from 1969 to 1973 he served as the rector of Ben-Gurion University in Beersheba.
[2] His early research led to the proof of the theorem devised by Richard M. Wilson on pairwise balance designs.
[2] He wrote scholarly papers with Andries Brouwer, Paul Erdős, Alexander Schrijver, and Richard M. Wilson, among others.