Sergio Flamigni (born 22 October 1925) is an Italian politician and writer.

[2][3] He began his political activity in 1941, as a member of a clandestine group of young anti-fascists in his hometown, and subsequently entered the Communist Party of Italy.

In 1943 he was named secretary of the communist youth movement in Forlì and became a member of the party's clandestine committee in the city.

In 1959, he was elected into the party's national central committee, and in the following year regional coordinator for Emilia-Romagna.

[2][3] Flamigni worked in the Italian Parliament's commissions on mafia, the kidnapping of Aldo Moro and the Propaganda Due secret lodge, and wrote several books about these arguments.