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Halloween parties Events and Things to do in Boulder, CO

Selling fast
Halloween Silent Disco - All Ages Family Party!
Tomorrow at 6:00 PM
Louisville · The Louisville Underground
Selling fast
Halloween Silent Disco - All Ages Family Party!
Tomorrow at 6:00 PM
Louisville · The Louisville Underground
Sales end soon
Halloween Silent Disco -21+ Party!
Tomorrow at 8:30 PM
Louisville · The Louisville Underground
Sales end soon
Halloween Silent Disco -21+ Party!
Tomorrow at 8:30 PM
Louisville · The Louisville Underground
Halloween 2026 : NED AFTER DARK
Sat, Oct 31, 8:00 PM
Nederland · Ned General
Halloween 2026 : NED AFTER DARK
Sat, Oct 31, 8:00 PM
Nederland · Ned General
NIGHTMARE ON MAIN STREET RETURNS
Sat, Oct 31, 7:00 PM
Louisville · The Jasmine Bar
NIGHTMARE ON MAIN STREET RETURNS
Sat, Oct 31, 7:00 PM
Louisville · The Jasmine Bar
Halloween Party | CBAR
Sat, Oct 31, 9:30 PM
Boulder · 921 Pearl St
Halloween Party | CBAR
Sat, Oct 31, 9:30 PM
Boulder · 921 Pearl St
FREE SHOW SATURDAY HALLOWEEN $500 COSTUME PARTY WITH THE GRIND
Sat, Oct 31, 7:00 PM
Northglenn · @ Cheers
FREE SHOW SATURDAY HALLOWEEN $500 COSTUME PARTY WITH THE GRIND
Sat, Oct 31, 7:00 PM
Northglenn · @ Cheers
Just added
Denver Halloween Bar Crawl 2026
Sat, Oct 31, 4:00 PM
Denver · One Shot Back
Just added
Denver Halloween Bar Crawl 2026
Sat, Oct 31, 4:00 PM
Denver · One Shot Back
Downtown Aquarium - Spirits Under the Sea Cocktail Event
Fri, Oct 30, 7:00 PM
Denver · Downtown Aquarium
Downtown Aquarium - Spirits Under the Sea Cocktail Event
Fri, Oct 30, 7:00 PM
Denver · Downtown Aquarium
Sales end soon
Spellbound- Surrender to the Rhythm
Saturday at 7:30 PM
Lakewood · Mint & Serif
Sales end soon
Spellbound- Surrender to the Rhythm
Saturday at 7:30 PM
Lakewood · Mint & Serif
Sales end soon
Peak Trunk or Treat
Saturday at 4:00 PM
Thornton · 12421 Washington St
Sales end soon
Peak Trunk or Treat
Saturday at 4:00 PM
Thornton · 12421 Washington St
Sales end soon
HALLOSPRINGS AT THE HAUNTED CASTLE
Saturday at 7:00 PM
Thornton · The Castle Event Center
Sales end soon
HALLOSPRINGS AT THE HAUNTED CASTLE
Saturday at 7:00 PM
Thornton · The Castle Event Center
Almost full
Glamorous Monsters Halloween Party!
Fri, Oct 30, 8:00 PM
Denver · The Olive Tiger
Almost full
Glamorous Monsters Halloween Party!
Fri, Oct 30, 8:00 PM
Denver · The Olive Tiger
AREA 5280
Fri, Oct 30, 8:00 PM
Denver · Moodswing
AREA 5280
Fri, Oct 30, 8:00 PM
Denver · Moodswing
Sales end soon
Mude 303 Halloween Pop-Up
Saturday at 6:00 PM
Boulder · Rooted Robotics
Sales end soon
Mude 303 Halloween Pop-Up
Saturday at 6:00 PM
Boulder · Rooted Robotics
Trick or Drink: Denver Halloween Bar Crawl (3 Days)
Denver · One Shot Back
Trick or Drink: Denver Halloween Bar Crawl (3 Days)
Denver · One Shot Back
Selling fast
Till Death Do Us Party
Sat, Oct 31, 8:00 PM
Denver · Dearly Departed
Selling fast
Till Death Do Us Party
Sat, Oct 31, 8:00 PM
Denver · Dearly Departed
Sales end soon
TERROR TOWN | Red Carpet Halloween Party -VIEWHOUSE BP Hosted by @KURTTOCCI
Saturday at 8:00 PM
Denver · Viewhouse Ballpark
Sales end soon
TERROR TOWN | Red Carpet Halloween Party -VIEWHOUSE BP Hosted by @KURTTOCCI
Saturday at 8:00 PM
Denver · Viewhouse Ballpark
Mizu Izakaya Anniversary Party!
Thu, Oct 29, 6:00 PM
Denver · Mizu Izakaya
Mizu Izakaya Anniversary Party!
Thu, Oct 29, 6:00 PM
Denver · Mizu Izakaya
Sales end soon
Howl-O-Ween
Saturday at 1:00 PM
Denver · Improper City
Sales end soon
Howl-O-Ween
Saturday at 1:00 PM
Denver · Improper City
Selling fast
Denver HALLOWEEN LOCK & KEY SINGLES PARTY Age 25-59 ♥ Costumes Optional
Fri, Oct 30, 7:00 PM
Denver · Brewdog Denver
Selling fast
Denver HALLOWEEN LOCK & KEY SINGLES PARTY Age 25-59 ♥ Costumes Optional
Fri, Oct 30, 7:00 PM
Denver · Brewdog Denver

Trends in Boulder

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