W
- Wood River Trail: Hailey to Ketchum
- Wood's Trail
- Wookie Woods
- Worcester Mountain Trail
- Working Class Loop
- Workout Wednesday Tempelhof Park Loop
- World Cup
- World Cup DH
- World Cup Single Track
- Worlds End 100k Ultramarathon
- Worm Westside
- Wormwood Scrubs Parkrun
- Wouaiy
- Wouaiy Enduro Epic
- Wow Ridge
- WOW Trail
- Wow Woods
- Wray's Way
- Wreck Road to Ford Point
- Wupatki Pueblo Trail
- Wüstlau Trail
- Wyatt Couloir
- Wye Creek Route to Lake Alta
- Wyoming Bowl
- Wyskis