Massimo de Bertolis (born 28 April 1975) is an Italian former professional cross-country mountain biker.

He most notably won the 2004 UCI Mountain Bike Marathon World Championships in Bad Goisern, Austria.

[1] He also won the first round of the 2005 UCI XCM World Cup and finished 5th overall.

In the 2007 edition, he won the second round in Villabassa and this time finished second overall.

This biographical article related to an Italian cycling person born in the 1970s is a stub.