| Gianni Francesco Mattioli | |
| Office: | Minister of Community Policies |
| Primeminister: | Giuliano Amato |
| Term Start: | 21 October 1998 |
| Term End: | 22 December 1999 |
| Predecessor: | Patrizia Toia |
| Successor: | Rocco Buttiglione |
| Office1: | Member of the Chamber of Deputies |
| Term Start1: | 2 July 1987 |
| Term End1: | 29 May 2001 |
| Birth Date: | 1940 1, df=y |
| Birth Place: | Genoa, Italy |
| Nationality: | Italian |
| Profession: | Politician, University professor |
| Alma Mater: | Sapienza University of Rome |
Gianni Francesco Mattioli (born 29 January 1940 in Genoa) is an Italian politician and university professor.
Mattioli graduated with a def in physics in 1964 with a thesis on the diffusion of high energy particles. In 1973 he became a professor of the same subject at La Sapienza University of Rome, conducting research in the field of quantum mechanics and rational mechanics.[1]
In 1978, Mattioli founded the "Committee for the Control of Energy Choices", together with Massimo Scalia. He began his anti-nuclear commitment in the International Fellowship of Reconciliation in Rome. In 1981, he founded the magazine Quale energia?, of which he was director for six years.
In 1987, Mattioli was elected deputy among the ranks of the Greens, of which he was also president from 1988 to 1992. He was re-elected deputy also in 1992, 1994 and 1996. In 1996, he was appointed undersecretary of public works in the first Prodi government; in those years, he joined the executive committee of Legambiente. From 2000 to 2001, he also served as Minister of Community Policies in the Amato II Cabinet, after his party colleague, Edo Ronchi, refused this post.
On 20 December 2009, Mattioli joined the national coordination of Left Ecology Freedom, of which he later became responsible for environmental policies.