Riders: Y
- Monster Energy AMA Supercross Championship
- AMA Pro Motocross Championship
- SuperMotocross World Championship
- FIM Motocross World Championship
- Progressive GNCC Racing
- Motocross of Nations
- FIM World Supercross Championship
- Australian Supercross Championship
- Women's Motocross Championship
- Monster Energy Cup
-
Haruki Yakoyama
-
Kei Yamamoto
Japan -
Kelly Yancey
Peoria, AZ -
Jie Yang
China -
Sam A Yannitelli
Macedonia, OH -
Yao Yao
China -
James Yarbrough
Winston Salem, NC -
Shawn Yarbrough
Alpine, UT -
Eric Yarnell
Ormond Beach, FL -
Brandon Yates
Ottawa, KS -
Dylan Yearbury
Cambridge, NZ -
Brian Years
Victor, NY -
Christian Yellow Kidney
Pablo, MT -
Drew Yenerich
New Lenox, IL -
Mike Yenerich
Homewood, IL -
Chase Yentzer
Carlisle, PA -
Jeff Yentzer
Carlisle, PA -
Davey Yezek
Mt. Pleasant, PA -
Irmak Yildirim
Türkiye -
Hunter Yoder
Menifee, CA -
Trent Yoder
Grantsville, MD -
Dakota Yohe
Spring Grove, PA -
Kenny Yoho
Dover, FL -
Haruki Yokoyama
Riverside, CA -
Jackson Yonge
Hilliard, FL -
Barry Young
West Grove, PA -
Chris Young
Orange, CA -
Gregg Young
Huntington Beach, CA -
Jason Young
Mound City, MO -
Michael G Young
Rancho Cucamonga, CA -
Mike Young
Palmdale, CA -
Richard Young
Buckner, MO