Marco Giancarlo Andreolli (born 10 June 1986) is an Italian retired professional footballer who played as a centre-back.

On 27 July 2007, Andreolli signed with Roma on a co-ownership deal as part of the agreement that brought Cristian Chivu to Inter, he was tagged as €3 million for half of the rights.

[8] With the number 3, Andreolli made his competitive debut five days after the transfer in the opening matchday by starting in a 2–1 win against Catania.

[21] On 31 August 2015, after totalling just 10 league appearances in two years at Inter, Andreolli moved abroad for the first time, being loaned to Spain's Sevilla for the upcoming campaign.

Due to injury to Adil Rami, he made his La Liga debut on 11 September, partnering Timothée Kolodziejczak in a 1–1 draw at Levante UD.

[29] He also said that he grew up idolising ex-Inter defenders Riccardo Ferri and Giuseppe Bergomi, but added that his favourite player was Marco van Basten.