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find Halloween events for every vibe.

Holiday events in Diamond Bar, CA

Search for something you love or check out popular events in your area.

Halloween Party at The Hideaway Riverside!
Fri, Oct 31, 9:00 PM
Downtown · The Hideaway Cafe & Lounge
Halloween Party at The Hideaway Riverside!
Fri, Oct 31, 9:00 PM
Downtown · The Hideaway Cafe & Lounge
Sales end soon
Haunted Mansion Haunt 2025
Friday at 7:00 PM + 18 more
Portola Hills · 28322 Millwood Rd
Sales end soon
Haunted Mansion Haunt 2025
Friday at 7:00 PM + 18 more
Portola Hills · 28322 Millwood Rd
Nearly full
HALLOWEEN REGGAETON COSTUME PARTY: TRAVESURAS
Sat, Oct 25, 9:00 PM
Downtown · 18 Social
Nearly full
HALLOWEEN REGGAETON COSTUME PARTY: TRAVESURAS
Sat, Oct 25, 9:00 PM
Downtown · 18 Social
Just added!
LA's Most Lit Halloween Party!
Fri, Oct 24, 9:00 PM
Downtown · 930 Mateo St
Just added!
LA's Most Lit Halloween Party!
Fri, Oct 24, 9:00 PM
Downtown · 930 Mateo St
THE ETERNAL THIRST: Halloween at The Reserve in Downtown Los Angeles
Fri, Oct 31, 9:00 PM
Downtown · The Reserve
THE ETERNAL THIRST: Halloween at The Reserve in Downtown Los Angeles
Fri, Oct 31, 9:00 PM
Downtown · The Reserve
Recession Indicator: Costume + Halloween Party
Fri, Oct 31, 9:00 PM
Downtown · The Continental Club
Recession Indicator: Costume + Halloween Party
Fri, Oct 31, 9:00 PM
Downtown · The Continental Club
Pasadena, CA Official St. Patrick's Day Bar Crawl
Tue, Mar 17, 5:00 PM
Downtown · Behind Bars
Pasadena, CA Official St. Patrick's Day Bar Crawl
Tue, Mar 17, 5:00 PM
Downtown · Behind Bars
Long Beach's Best Halloween Weekend Bar Crawl
Alamitos Beach · Best Bars in Long Beach
Long Beach's Best Halloween Weekend Bar Crawl
Alamitos Beach · Best Bars in Long Beach
Riverside New Years Eve Bar Crawl
Wed, Dec 31, 6:00 PM
Downtown · Riverside
Riverside New Years Eve Bar Crawl
Wed, Dec 31, 6:00 PM
Downtown · Riverside
Pasadena, CA Cinco De Mayo Bar Crawl
Sat, May 2, 5:00 PM
Downtown · Der Wolf
Pasadena, CA Cinco De Mayo Bar Crawl
Sat, May 2, 5:00 PM
Downtown · Der Wolf
SCARLET MASQUERADE HALLOWEEN PARTY
Fri, Oct 31, 10:00 PM
Echo Park · Club Bahia
SCARLET MASQUERADE HALLOWEEN PARTY
Fri, Oct 31, 10:00 PM
Echo Park · Club Bahia
Halloween Social Dance: Salsa, Bachata, Cumbia & More in Long Beach
Fri, Oct 31, 8:30 PM
Alamitos Heights · En Point Dance & Fitness
Halloween Social Dance: Salsa, Bachata, Cumbia & More in Long Beach
Fri, Oct 31, 8:30 PM
Alamitos Heights · En Point Dance & Fitness
Halloween Party at Cruisers HB - Drink Packages - Free RSVP
Fri, Oct 31, 8:00 PM
Downtown · Cruisers Pizza Bar Grill HB
Halloween Party at Cruisers HB - Drink Packages - Free RSVP
Fri, Oct 31, 8:00 PM
Downtown · Cruisers Pizza Bar Grill HB
LONG BEACH ZOMBIE CRAWL - Halloween Bar Crawl - 10+ Bars - Oct 31st
Fri, Oct 31, 7:00 PM
Alamitos Beach · Altar Society Brewing and Coffee Co.
LONG BEACH ZOMBIE CRAWL - Halloween Bar Crawl - 10+ Bars - Oct 31st
Fri, Oct 31, 7:00 PM
Alamitos Beach · Altar Society Brewing and Coffee Co.
Flow Into Fall
Sun, Nov 2, 1:00 PM
Cliff Haven · Sol Studio
Flow Into Fall
Sun, Nov 2, 1:00 PM
Cliff Haven · Sol Studio
HALLOWEEN NIGHT at Chica Bonita Lounge
Fri, Oct 31, 9:00 PM
Downtown · Chica Bonita Lounge
HALLOWEEN NIGHT at Chica Bonita Lounge
Fri, Oct 31, 9:00 PM
Downtown · Chica Bonita Lounge
The Creative Screening Mixer - Spooky Edition
Thu, Oct 30, 7:00 PM
Historic Core · Park and Lex Studios
The Creative Screening Mixer - Spooky Edition
Thu, Oct 30, 7:00 PM
Historic Core · Park and Lex Studios
Trick-or-Trellis
Fri, Oct 24, 6:00 PM
Emerald Isle · Trellis Learning
Trick-or-Trellis
Fri, Oct 24, 6:00 PM
Emerald Isle · Trellis Learning
RITMO: A Nightmare on PINE street 21+ in LB, CA! (Halloween Costume Party)
Thu, Oct 23, 10:00 PM
Alamitos Beach · Alegria Cocina Latina (Restaurant by day, nightclub by night)
RITMO: A Nightmare on PINE street 21+ in LB, CA! (Halloween Costume Party)
Thu, Oct 23, 10:00 PM
Alamitos Beach · Alegria Cocina Latina (Restaurant by day, nightclub by night)
LOS ANGELES HALLOWEEN BAR CRAWL - 10+ Bars - Nov 1st
Sat, Nov 1, 7:00 PM
Downtown · Karl Strauss Brewing Company
LOS ANGELES HALLOWEEN BAR CRAWL - 10+ Bars - Nov 1st
Sat, Nov 1, 7:00 PM
Downtown · Karl Strauss Brewing Company

Trends in Diamond Bar

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Frequently asked questions about Diamond Bar

What are the best events to attend?

According to Eventbrite, the best events are:

Halloween Party at The Hideaway Riverside!

HALLOWEEN REGGAETON COSTUME PARTY: TRAVESURAS

THE ETERNAL THIRST: Halloween at The Reserve in Downtown Los Angeles

Recession Indicator: Costume + Halloween Party

Which events are currently trending in Diamond Bar?

The trending searches this month in Diamond Bar are:

events happening today near me

free kids event

Which events are coming up?

Discover the best events happening soon – you don't want to miss them:

Haunted Mansion Haunt 2025

RITMO: A Nightmare on PINE street 21+ in LB, CA! (Halloween Costume Party)

Trick-or-Trellis

LA's Most Lit Halloween Party!