Antonio Rostagni (14 July 1903 – 5 December 1988) was an Italian physicist and academician.

He was a physicist involved in research in the fields of terrestrial physics, electromagnetic waves, and cosmic rays.

He became a member of the Academy of Sciences of Turin in 1951.

Rostagni was vice-President of the Italian National Institute of Nuclear Physics from 1956 to 1958 and from 1958 to 1959 was director of the Research Division at the International Atomic Energy Agency (IAEA) at Vienna.

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