| Zach McDonald | |
| Fullname: | Zachary McDonald |
| Birth Date: | 13 February 1991 |
| Birth Place: | Bainbridge Island, Washington |
| Height: | 5 ft 9 in |
| Weight: | 135 lbs |
| Currentteam: | Retired |
| Discipline: | Cyclo-cross |
| Amateurteam2: | KCCX Elite Cyclocross Team |
| Proteam1: | Rapha–Focus |
| Amateuryears2: | 2014 |
| Proyears1: | 2010–2013 |
| Amateuryears1: | 2006–2009 |
| Amateurteam1: | Classic Cycles |
| Amateuryears3: | 2015 |
| Amateurteam3: | Streamline Insurance Services Cycling Team |
| Majorwins: | |
Zachary McDonald (born February 13, 1991) is an American former professional cyclo-cross cyclist. In late 2008, he won the U.S. Junior National Cyclo-cross Championships, followed by a 3rd place in the junior category of the Roubaix race at the UCI World Cup in January 2009.[1] He won the National U23 Championships in 2012, before stepping up to the professional category where he placed 2nd the following year.