Giuseppe "Beppe" Pisanu (born 2 January 1937 in Ittiri, province of Sassari) is an Italian politician, longtime member of the Chamber of Deputies for the Christian Democracy (1972–1992) and then for Forza Italia (1994–2006).

He was the top-aide to Benigno Zaccagnini, leader of the left-wing of the Christian Democracy and national secretary of the party from 1975 to 1980.

In 1994 he joined Forza Italia, of which he was vice-president (1994–96) and President of faction (1996–2001) in the Chamber of Deputies.

In 1983 Pisanu was forced to resign as an undersecretary for the P2 scandal, for his relations with Flavio Carboni, with Roberto Calvi, and with the Banco Ambrosiano crack.

[1] According to MPs Sergio Flamigni and Michele Caccavale, in the early 80s Pisanu, then Undersecretary of the Treasury, was the political godfather of Flavio Carboni, Sardinian hustler in relations with members of the Mafia and with members of the Magliana Gang, and in business with Silvio Berlusconi.