Fulvio Fantoni (born 9 November 1963) is an Italian international bridge player.
He is a six-time world champion, a World Grand Master of the World Bridge Federation (WBF), and the WBF first-ranked player as of December 2011.
He is one of 10 players who have won the Triple Crown of Bridge.
Fantoni was born in Grosseto.
November 2010, Fantoni says that he has lived "practically since I was born" in Ostia, in the coastal district of Rome.
His regular partner for many years is Claudio Nunes, the second-ranked World Grand Master (April 2011).
Nunes also lives in Ostia and they see each other socially.They play "Fantunes", for their surnames, an innovative bidding system characterised by natural but forcing one-level opening bids in all four suits.
The pair was implicated in a cheating scandal in 2015 resulting in sanctions against them, only some of which were negated by appeals.