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find Halloween events for every vibe.

Costume party events in Fort Collins, CO

Coloween 2025: Open Bar & Haunted Bounce Empire
Fri, Oct 31, 9:00 PM
Lafayette · Bounce Empire
Coloween 2025: Open Bar & Haunted Bounce Empire
Fri, Oct 31, 9:00 PM
Lafayette · Bounce Empire
Sales end soon
Howl-o-ween Dog Costume Contest
Saturday at 3:00 PM
Fort Collins · Odell Brewing Company
Sales end soon
Howl-o-ween Dog Costume Contest
Saturday at 3:00 PM
Fort Collins · Odell Brewing Company
Nearly full
Halloween at The Merc with Bourbon Brass Band
Fri, Oct 31, 5:00 PM
Jamestown · Jamestown Mercantile
Nearly full
Halloween at The Merc with Bourbon Brass Band
Fri, Oct 31, 5:00 PM
Jamestown · Jamestown Mercantile
Greeley's Best Halloween Weekend Bar Crawl
Greeley · Best Bars in Greeley
Greeley's Best Halloween Weekend Bar Crawl
Greeley · Best Bars in Greeley
Singles Social, @ Union Bar and Soda Fountain
Tue, Nov 11, 6:00 PM
Fort Collins · 250 Jefferson St
Singles Social, @ Union Bar and Soda Fountain
Tue, Nov 11, 6:00 PM
Fort Collins · 250 Jefferson St
Do The Ugly Sweater Pub Crawl in Greeley
Sat, Dec 13, 4:30 PM
Greeley · Patrick's Irish Pub
Do The Ugly Sweater Pub Crawl in Greeley
Sat, Dec 13, 4:30 PM
Greeley · Patrick's Irish Pub
Just added!
Costume Party
Fri, Oct 31, 7:00 PM
Westminster · Pandora's Box
Just added!
Costume Party
Fri, Oct 31, 7:00 PM
Westminster · Pandora's Box
WATSON BOO BASH
Sat, Nov 1, 5:00 PM
Louisville · 1170 Harper Lake Dr
WATSON BOO BASH
Sat, Nov 1, 5:00 PM
Louisville · 1170 Harper Lake Dr
Night of the Spirits | Halloween Party at Looking Glass
Fri, Oct 31, 9:00 PM
Fort Collins · Looking Glass Escape Lounge, North College Avenue, Fort Collins, CO, USA
Night of the Spirits | Halloween Party at Looking Glass
Fri, Oct 31, 9:00 PM
Fort Collins · Looking Glass Escape Lounge, North College Avenue, Fort Collins, CO, USA
Sales end soon
Pups & Pumpkins Harvest Gathering
Saturday at 2:00 PM
Boulder · Ember & Ice Boulder
Sales end soon
Pups & Pumpkins Harvest Gathering
Saturday at 2:00 PM
Boulder · Ember & Ice Boulder
Sales end soon
Main Event Thornton-Halloween Boo-wling Spooktacular*
Sunday at 11:00 AM
Thornton · Main Event Thornton
Sales end soon
Main Event Thornton-Halloween Boo-wling Spooktacular*
Sunday at 11:00 AM
Thornton · Main Event Thornton
The Official Halloween Bar Crawl (Fri & Sat) - Fort Collins
Fri, Oct 31, 4:00 PM
Fort Collins · Bondi Beach Bar and Grill
The Official Halloween Bar Crawl (Fri & Sat) - Fort Collins
Fri, Oct 31, 4:00 PM
Fort Collins · Bondi Beach Bar and Grill
Nearly full
Halloween Silent Disco -21+ Party!
Saturday at 8:30 PM
Louisville · The Louisville Underground
Nearly full
Halloween Silent Disco -21+ Party!
Saturday at 8:30 PM
Louisville · The Louisville Underground
Sales end soon
Trunk-or-Treat
Sunday at 5:00 AM
Greeley · 1534 11th St
Sales end soon
Trunk-or-Treat
Sunday at 5:00 AM
Greeley · 1534 11th St
Denver Halloween Costume Bash - OPEN BAR
Fri, Oct 31, 9:00 PM
Denver · Sheraton Denver Downtown Hotel
Denver Halloween Costume Bash - OPEN BAR
Fri, Oct 31, 9:00 PM
Denver · Sheraton Denver Downtown Hotel
Fort Collins Official Halloween Bar Crawl
Fri, Oct 31, 5:00 PM
Fort Collins · The Yeti Bar and Grill
Fort Collins Official Halloween Bar Crawl
Fri, Oct 31, 5:00 PM
Fort Collins · The Yeti Bar and Grill
Sales end soon
Trunk or Treat
Saturday at 10:30 AM
Greeley · 4801 W 25th St
Sales end soon
Trunk or Treat
Saturday at 10:30 AM
Greeley · 4801 W 25th St
Ned Gen Halloween Party with Bear Hat and Something Slight
Fri, Oct 31, 8:00 PM
Nederland · Ned General
Ned Gen Halloween Party with Bear Hat and Something Slight
Fri, Oct 31, 8:00 PM
Nederland · Ned General
Just added!
2025 Harvest Party
Fri, Oct 31, 6:00 AM
Longmont · 1450 Martin St
Just added!
2025 Harvest Party
Fri, Oct 31, 6:00 AM
Longmont · 1450 Martin St
Sales end soon
Ace and 24 Whopo’s Scorpio Szn Birthday/Costume Party
Thursday at 7:30 PM
Denver · Your Mom's House Denver
Sales end soon
Ace and 24 Whopo’s Scorpio Szn Birthday/Costume Party
Thursday at 7:30 PM
Denver · Your Mom's House Denver

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