8th Annual Halloween Bark Bash at One Loudoun in Ashburn

Event Info: https://www.downtownoneloudoun.com/events/7th-annual-halloween-bark-bash-2026

Join One Loudoun on Saturday, October 24 from 12–3 PM for its signature pet event! The Halloween Bark Bash at One Loudoun is an outdoor, Halloween-themed festival, bringing together local pet-focused businesses, animal rescue groups, and pet owners for an exciting day of trick or treating, adoptable dogs, music, costumes, and animals galore.

• Dog Costume Contest

• Trick-or-Treat Trail

• Vendors

• Rescues

• Dog Caricatures

• Photo Booth

• Kids Activities and More!

Downtown One Loudoun | Ashburn