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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.

Sales end soon
DASH FRIDAYS : HALLOWEEN NITE 18+ COSTUME PARTY !
Friday at 10:00 PM
Pomona · The Basement – Pomona
Sales end soon
DASH FRIDAYS : HALLOWEEN NITE 18+ COSTUME PARTY !
Friday at 10:00 PM
Pomona · The Basement – Pomona
Selling quickly
Haunted HEAT Halloween
Friday at 9:30 PM
Anaheim · HEAT Ultra Lounge
Selling quickly
Haunted HEAT Halloween
Friday at 9:30 PM
Anaheim · HEAT Ultra Lounge
Selling quickly
Halloween at Villains Lair
Friday at 7:00 PM
Anaheim · Villains Brewing Company
Selling quickly
Halloween at Villains Lair
Friday at 7:00 PM
Anaheim · Villains Brewing Company
Selling quickly
A Festive Night At The Hollywood Canteen With Alex Mendham & His Orchestra
Sat, Dec 13, 5:00 PM
Chino · Planes of Fame
Selling quickly
A Festive Night At The Hollywood Canteen With Alex Mendham & His Orchestra
Sat, Dec 13, 5:00 PM
Chino · Planes of Fame
Sales end soon
11th Annual Halloween Massacre
Friday at 9:30 PM
Whittier · Muchas Gracias
Sales end soon
11th Annual Halloween Massacre
Friday at 9:30 PM
Whittier · Muchas Gracias
Sales end soon
Underworld: The Faction Wars - Halloween Club Night
Friday at 9:30 PM
Ontario · Hamburger Mary's Ontario
Sales end soon
Underworld: The Faction Wars - Halloween Club Night
Friday at 9:30 PM
Ontario · Hamburger Mary's Ontario
Sales end soon
Main Event Montclair-Halloween Boo-wling Spooktacular
Tomorrow at 5:00 PM
Montclair · Main Event Montclair
Sales end soon
Main Event Montclair-Halloween Boo-wling Spooktacular
Tomorrow at 5:00 PM
Montclair · Main Event Montclair
Selling quickly
Holiday Mixer: Jingle & Mingle
Thu, Nov 13, 5:30 PM
Ontario · Left Coast Brewing Distillery Smokehouse - Ontario
Selling quickly
Holiday Mixer: Jingle & Mingle
Thu, Nov 13, 5:30 PM
Ontario · Left Coast Brewing Distillery Smokehouse - Ontario
Friendsgiving After Dark
Thu, Nov 13, 7:00 PM
Upland · Bullwinkle's Upland
Friendsgiving After Dark
Thu, Nov 13, 7:00 PM
Upland · Bullwinkle's Upland
Diwali + Aarti’s Birthday Extravaganza! - Presale General Admission – $45
Wed, Nov 12, 5:00 PM
Orange · Tandoor Cuisine of India
Diwali + Aarti’s Birthday Extravaganza! - Presale General Admission – $45
Wed, Nov 12, 5:00 PM
Orange · Tandoor Cuisine of India
Just added!
THE BIGGEST PRE THANKSGIVING EVENT IN ORANGE COUNTY | HEAT ULTRA LOUNGE
Wed, Nov 26, 9:30 PM
Anaheim · HEAT Ultra Lounge
Just added!
THE BIGGEST PRE THANKSGIVING EVENT IN ORANGE COUNTY | HEAT ULTRA LOUNGE
Wed, Nov 26, 9:30 PM
Anaheim · HEAT Ultra Lounge
Sales end soon
HALLOWEEN NIGHT "THE PURGE" @ BLEU NIGHT CLUB FRIDAY OCT 31ST | 18+
Friday at 10:00 PM
Westminster · Bleu Restaurant & Dancing
Sales end soon
HALLOWEEN NIGHT "THE PURGE" @ BLEU NIGHT CLUB FRIDAY OCT 31ST | 18+
Friday at 10:00 PM
Westminster · Bleu Restaurant & Dancing
Sales end soon
Halloween Singles Party | Ages 21+ | Downtown Santa Ana | Cerveza Cito
Friday at 7:00 PM
Santa Ana · Cerveza Cito Brewery
Sales end soon
Halloween Singles Party | Ages 21+ | Downtown Santa Ana | Cerveza Cito
Friday at 7:00 PM
Santa Ana · Cerveza Cito Brewery
FFS/Team Crusaders Christmas Party 2025
Sat, Dec 20, 6:00 PM
Buena Park · DoubleTree by Hilton Buena Park
FFS/Team Crusaders Christmas Party 2025
Sat, Dec 20, 6:00 PM
Buena Park · DoubleTree by Hilton Buena Park
Sales end soon
Spooky Perreo
Tomorrow at 9:00 PM
Anaheim · 1233 S Brookhurst St
Sales end soon
Spooky Perreo
Tomorrow at 9:00 PM
Anaheim · 1233 S Brookhurst St
Sales end soon
PAR 3 HALLOWEEN BASH
Friday at 8:00 PM
Corona · Par 3 Sports Bar & Grill
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PAR 3 HALLOWEEN BASH
Friday at 8:00 PM
Corona · Par 3 Sports Bar & Grill
Sales end soon
THE HAUNTED COMPOUND NOCHE DE BRUJAS WITH J VALENTINO & DJ IRONY
Friday at 9:00 PM
Commerce · The Compound by Dirt Dog
Sales end soon
THE HAUNTED COMPOUND NOCHE DE BRUJAS WITH J VALENTINO & DJ IRONY
Friday at 9:00 PM
Commerce · The Compound by Dirt Dog
Sales end soon
SALSAWEEN | ULTIMATE SALSA BACHATA HALLOWEEN PARTY
Tomorrow at 8:00 PM
Buena Park · Golden Rose Restaurant & Banquet Hall
Sales end soon
SALSAWEEN | ULTIMATE SALSA BACHATA HALLOWEEN PARTY
Tomorrow at 8:00 PM
Buena Park · Golden Rose Restaurant & Banquet Hall
Nearly full
Esthie Holiday Party
Sat, Dec 13, 7:00 PM
Artesia · The Gallery
Nearly full
Esthie Holiday Party
Sat, Dec 13, 7:00 PM
Artesia · The Gallery
Sales end soon
DAVE & BUSTERS AFTER DARK PRESENTS: THE COSTUME PARTY
Friday at 8:30 PM
Orange · Dave & Buster's
Sales end soon
DAVE & BUSTERS AFTER DARK PRESENTS: THE COSTUME PARTY
Friday at 8:30 PM
Orange · Dave & Buster's

Trends in Diamond Bar

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Frequently asked questions about Diamond Bar

What are the best party events to attend?

According to Eventbrite, the best party events are:

DASH FRIDAYS : HALLOWEEN NITE 18+ COSTUME PARTY !

Haunted HEAT Halloween

A Festive Night At The Hollywood Canteen With Alex Mendham & His Orchestra

11th Annual Halloween Massacre

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 party events are coming up?

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

Main Event Montclair-Halloween Boo-wling Spooktacular

SALSAWEEN | ULTIMATE SALSA BACHATA HALLOWEEN PARTY

Halloween at Villains Lair