Charles Lambert Marie Joseph Manneback (born 9 March 1894 in Etterbeek, Belgium; died 15 December 1975 in Etterbeek) was a Belgian physicist, mining engineer, and mathematician.
After serving in the Belgian army during World War I, he obtained a civil engineering diploma in 1920.
He then left to the United States as an exchange fellow, where he obtained an M.A.
degree from the Massachusetts Institute of Technology, and in 1922 a Ph.D.
degree in electrical engineering.
His dissertation was advised by V.
Bush and had a subject from the theory of electromagnetic waves and the skin effect.
He was a professor at the KU Leuven, and a member of the Royal Academies for Science and the Arts of Belgium.