Ennio Candotti (born 1942, in Rome, Italy) is a Brazilian physicist and scientific leader.
He studied physics at the University of São Paulo, in São Paulo, from 1960 to 1964, and also at the University of Naples, in Naples, Italy (1970–71). From 1966 to 1968 he specialized in theoretical physics at the University of Pisa (relativity theory), in mathematical physics at the University of Munich, in Munich, Germany (1968–1969) and in dynamic systems at the University of Naples again.
From 1974 to 1995, Candotti was a professor with the Federal University of Rio de Janeiro. Currently he is a professor at the , in Vitória, state of Espírito Santo. He was naturalized a Brazilian in 1983.
Dr. Candotti is in his fourth mandate as the president of the Brazilian Society for the Progress of Science (Sociedade Brasileira para o Progresso da Ciência), the major scientific association in the country, and editor of Ciência Hoje, its scientific popularization magazine. For his activities in this area he has received the 1999 Kalinga Prize conceded by UNESCO. He was also the president of the International Union for Science Communicators, created in 2002 in Mumbai, India.