Gian Marco Centinaio (born 31 October 1971) is an Italian politician for Lega, serving as Vice President of the Senate of the Republic.

[3][4] A candidate in Lombardy with Lega Nord, Centinaio was elected to the Senate of the Republic in February 2013 for the Legislature XVII of Italy.

[8] On 27 September 2017, he was embroiled in a fake news dispute, sharing on his Facebook accusations that Laura Boldrini, then President of the Chamber, was involved in a nepotistic scandal.

[9] Centinaio was reelected to the Senate as part of the Legislature XVIII of Italy in March 2018, retaining his position as floor leader.

[10] During this period Centinaio would oppose the ratification of the Comprehensive Economic and Trade Agreement (CETA) between the EU and Canada.