Gleb Vassielievich Wataghin (November 3, 1899 in Birzula, Russian Empire – October 10, 1986 in Turin, Italy) was a Russian-Italian experimental physicist and a great scientific leader who gave a great impulse to the teaching and research on physics in two continents: in the University of São Paulo, São Paulo, Brazil; and in the University of Turin, Turin, Italy.
Wataghin was hired in 1934 to found with other European physicists the Department of Physics of the recently founded University of São Paulo.
The Institute of Physics of the State University of Campinas, in Campinas, Brazil, was named in his honour, as well as a prize in Physics.
In 1955, he received a honorary doctorate from the University of São Paulo.He was awarded the Feltrinelli Prize in 1951 and was national member of the Accademia Nazionale dei Lincei, from 1960.