Roberto Giachetti (born 24 April 1961) is an Italian politician, member of Italia Viva and of the Transnational Radical Party.

When the Radical Party was dissolved, Giachetti joined the Italian Greens and was elected a district councillor in Rome.

Beginning after the 2013 general election, he became gradually affiliated with the Renziani, the economically market-liberal, socially progressive faction around party secretary Matteo Renzi.

[10][11] Their electoral platform focused on vindicating the accomplishments of the Renzi and Gentiloni Cabinet, and revive the moderate wing of the party, thus thwarting any attempts at an alliance with M5S or Free and Equal (LEU).

On 3 March 2019 Giachetti placed third in the contest with a 12% result, after incumbent secretary Maurizio Martina (22%) and President of Lazio Nicola Zingaretti (66%).