Arturo Michelini (17 February 1909 – 15 June 1969) was an Italian politician and Secretary of the Italian Social Movement (MSI).
A minor party official during the days of Italian fascism and a war veteran, Michelini emerged as one of the two leading figures in the MSI during the 1950s and 1960s, representing the moderate tendency of the party against the nostalgic fascist tendency.