Daniel Monzoro Fontana (born December 31, 1975, in General Roca, Río Negro) is an Argentine-born Italian professional triathlete.

He first competed at two Pan-American Games (1999 and 2003), and at the 2004 Summer Olympics in Athens, as part of the Argentina team, where he placed twenty-eighth in the men's triathlon, with a time of 1:57:14.

He had also achieved three top fifteen placements at the World Olympic Distance, including his eighth-place finish in 2005, which considered highest by an Italian male.

Following his second Olympic participation, Fontana opted to run for the long-distance triathlon, and competed at the 2009 Ironman 70.3 World Championship in Clearwater, Florida, United States, where he finished second behind Germany's Michael Raelert with a time of 1:12:00.

In 2012, Fontana performed well with a second-place finishes at the TriStar Cannes tournament, and at the 2012 Ironman 70.3 World Series, although he had suffered some physical injuries during the race.