Boulder Halloween Events

The Fright Crawl | Boulder's #1 Halloween Bar Crawl 2026 | Sat, Oct 31

TBA 31 Oct 2026

The Fright Crawl | Boulder Halloween Day Bar Crawl 2026 | Sat, Oct 31

TBA 31 Oct 2026

The Fright Crawl | Boulder Halloween Bar Crawl 2026 | Thurs, Oct. 29

TBA 29 Oct 2026

6th Annual Motown Haunted Prom - Halloween Dance Party

Roots Music Project 31 Oct 2026

The Fright Crawl | Boulder Halloween Bar Crawl 2026 | Fri, Oct 30

TBA 30 Oct 2026

Boulder County Trunk or Treat

Boulder County Sheriff's Office 20 Oct 2026

Deadphish Orchestra "The ghosts of PHISH Halloweens past"

Roots Music Project 30 Oct 2026

Rave from the Grave: Halloween 2026 DJ Party

Roots Music Project 31 Oct 2026

Spooky Cabaret 2026

3022 East Sterling Cir 24 Oct 2026

Fall Fest

Rosetta Hall 25 Oct 2026

Zouk High SATURDAZE: Werewolves Vs Vampires 🐺🧛👻🎃

Boulder Circus Center 24 Oct 2026

Dark Disko

Rosetta Hall 30 Oct 2026

Five 5ths: Beetlejuice by Band of Toughs

Junkyard Social Club 28 Oct 2026

Halloween Monster Book Bash (Kid Friendly)

1909 9th St 31 Oct 2026

AoxomoxoA - Live at The St Julien

St Julien Hotel & Spa 30 Oct 2026

Halloween Latte Art Throwdown

Boxcar Coffee | Mesa Cafe 29 Oct 2026

Choice House Halloween Party!

6901 Lookout Rd, Boulder, CO, USA 22 Oct 2026

TWIST & TREAT: Join us for an in-center event!

OrangeTwist Boulder 16 Oct 2026

Spooky Hunt: Pearl Street Pumpkins & Riddles Quest

Pearl Street Mall 4 Oct 2026

Halloween Ride: Costumes, Coffee & Donuts

Performance & Recovery Labs/PR Labs 31 Oct 2026

School Days Off Class: What’s Ghouling on in the Garden

1630 Hawthorn Ave, Boulder, CO, United States, Colorado 80304 13 Oct 2026