West World of Scottsdale, Event venue in Scottsdale, Maricopa County, US

West World of Scottsdale is an event facility in Scottsdale, Arizona, about 14 km north of downtown Scottsdale, at roughly 470 m elevation. Its Tony Nelssen Equestrian Center holds over 300,000 sq ft (27,870 sq m) of indoor space, with nine equestrian arenas, a climate-controlled Equidome seating more than 3,300, North and South halls, and ten outdoor areas including 10 acres (4 ha) of turf.

West World of Scottsdale opened in 1987 and evolved into a hub for communities interested in horses and western traditions. Over the decades, the venue expanded from a dedicated equestrian facility to a multifaceted event space hosting concerts, car auctions, and various exhibitions.

West World of Scottsdale hosts the Scottsdale Arabian Horse Show, the Sun Country Quarter Horse Circuit and the Barrett-Jackson Car Auction, sometimes at the same time. The name comes from the venue's western-equestrian focus, and visitors can watch handlers groom and school horses in the arenas between events.

The venue offers ample parking for cars, motor coaches, and RVs, with clear signage throughout making it easy to find your way around the grounds. Overnight RV reservations are available in advance, and a nearby shop sells horse feed and supplies that can be ordered by phone or online.

Though originally focused on equestrian activities, the grounds developed a remarkable ability to host diverse events while maintaining their horse-centered identity. This flexibility has allowed the venue to simultaneously hold the Scottsdale Arabian Horse Show, the Barrett-Jackson Car Auction, and the Sun Country Quarter Horse Circuit, making it a space where different communities converge.