Sixteen athletes represented the United States in Australia at the 2024 UCI Mountain Bike World Championships.
The Team USA roster is as follows:
Cross Country
| Name | Hometown | Age Group | Place |
| Ashley HENDERSHOT | Ashland, OH | F35-39 | 2 |
| Ashlee WEIMAR | Mead, WA | F40-44 | 4 |
| Kevin BRADFORD-PARISH | Mead, WA | M40-44 | 3 |
| Shawn NEEDHAM | Moses Lake, WA | M50-54 | 9 |
| David JUAREZ | Whittier, CA | M60-64 | 1 |
| Emilio CERVANTES | Lake Forest, CA | M60-64 | 3 |
| Thomas HAYLES | Aspen, CO | M65-69 | 5 |
| Rick SEDERBERG | Batesville, AR | M75-79 | 2 |
Downhill
| Name | Hometown | Age Group | Place |
| Lindsey HARRIS | Campbell hall, NY | F45-49 | 2 |
| Lauren MOSER | Henderson, NV | F35-39 | 1 |
| Dave MELTON | Mammoth lakes, CA | M65-69 | 2 |
| Lee MCCORMACK | Broomfield, CO | M55-59 | 9 |
| Quinn WINTER | Henderson, NV | M50-54 | 15 |
| Petr HANAK | Winter Park, CO | M45-49 | 1 |
| Jeff BARKER | Henderson, NV | M45-49 | 17 |
| Allan COOKE | Santa Cruz, CA | M40-44 | 3 |
