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Events and Things to do in Diamond Bar, CA

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Taste of Brea 2026
Thu, May 21, 5:00 PM
Brea · Brea Downtown
Taste of Brea 2026
Thu, May 21, 5:00 PM
Brea · Brea Downtown
DAY 1 SATURDAY - SUMMER BASH
Sat, May 23, 12:00 PM
Pomona · The Cathedral Pomona
DAY 1 SATURDAY - SUMMER BASH
Sat, May 23, 12:00 PM
Pomona · The Cathedral Pomona
Chino Rodeo
Sun, Jun 14, 12:00 PM
Chino · 5410 Edison Ave
Chino Rodeo
Sun, Jun 14, 12:00 PM
Chino · 5410 Edison Ave
Selling fast
HIMSS SoCal Annual CXO Event
Tuesday at 8:00 AM
Yorba Linda · Richard Nixon Library & Museum
Selling fast
HIMSS SoCal Annual CXO Event
Tuesday at 8:00 AM
Yorba Linda · Richard Nixon Library & Museum
2026 Office of Academic Innovation Summer Conference
Wed, Jun 3, 8:00 AM
Pomona · Cal Poly Pomona-College of Business Administration (Building 162)
2026 Office of Academic Innovation Summer Conference
Wed, Jun 3, 8:00 AM
Pomona · Cal Poly Pomona-College of Business Administration (Building 162)
Selling fast
Santino Bros. Wrestling presents: STEEL CAGE
Friday at 8:00 PM
Azusa · VFW Azusa Post 8070
Selling fast
Santino Bros. Wrestling presents: STEEL CAGE
Friday at 8:00 PM
Azusa · VFW Azusa Post 8070
LIL VADA X OTM LIVE IN ANAHEIM
Fri, May 29, 9:00 PM
Anaheim · 1160 N Kraemer Blvd
LIL VADA X OTM LIVE IN ANAHEIM
Fri, May 29, 9:00 PM
Anaheim · 1160 N Kraemer Blvd
Selling fast
Del Norte Fest: Los Dinamicos Del Norte, Los Cadetes De Linares, Tiranos...
Sat, May 16, 5:30 PM
Santa Fe Springs · Santa Fe Springs Swap Meet
Selling fast
Del Norte Fest: Los Dinamicos Del Norte, Los Cadetes De Linares, Tiranos...
Sat, May 16, 5:30 PM
Santa Fe Springs · Santa Fe Springs Swap Meet
Selling fast
2026 LEILA Awards Gala
Fri, May 22, 6:00 PM
Ontario · DoubleTree by Hilton Hotel Ontario Airport
Selling fast
2026 LEILA Awards Gala
Fri, May 22, 6:00 PM
Ontario · DoubleTree by Hilton Hotel Ontario Airport
Selling fast
Mother's Day Concert: An Evening Celebrating Love, Music, and Candlelight
Today at 7:00 PM
Claremont · Claremont United Church of Christ
Selling fast
Mother's Day Concert: An Evening Celebrating Love, Music, and Candlelight
Today at 7:00 PM
Claremont · Claremont United Church of Christ
Almost full
Moda 2000 Quince Fashion Show Experience (Pico Rivera, CA)
Sun, May 17, 4:00 PM
Pico Rivera · Pico Rivera Sports Arena
Almost full
Moda 2000 Quince Fashion Show Experience (Pico Rivera, CA)
Sun, May 17, 4:00 PM
Pico Rivera · Pico Rivera Sports Arena
Brea Bonanza Days
Brea · Brea Downtown
Brea Bonanza Days
Brea · Brea Downtown
Loteria Game Night!!
Friday at 6:00 PM
Glendora · 159 N Cullen Ave
Loteria Game Night!!
Friday at 6:00 PM
Glendora · 159 N Cullen Ave
PURO ROCKERO ' BAJO LAS ESTRELLAS '
Sat, May 23, 7:00 PM
Pico Rivera · Pico Rivera Sports Arena
PURO ROCKERO ' BAJO LAS ESTRELLAS '
Sat, May 23, 7:00 PM
Pico Rivera · Pico Rivera Sports Arena
Friday Night Mayo 15 - Banda, Norteño, y Reggaeton
Friday at 9:30 PM
Pomona · Carnaval Nightclub
Friday Night Mayo 15 - Banda, Norteño, y Reggaeton
Friday at 9:30 PM
Pomona · Carnaval Nightclub
Classic VW & Porsche Car Show and Pinball Rally Replay 2026
Sat, May 16, 10:00 AM
Anaheim · Captain's Arcade Showroom
Classic VW & Porsche Car Show and Pinball Rally Replay 2026
Sat, May 16, 10:00 AM
Anaheim · Captain's Arcade Showroom
Sales end soon
Mayor's Prayer Breakfast
Tuesday at 7:00 AM
Azusa · Azusa Greens Country Club
Sales end soon
Mayor's Prayer Breakfast
Tuesday at 7:00 AM
Azusa · Azusa Greens Country Club
SGVWA Quarterly Membership Meeting (Breakfast)
Thu, May 21, 8:00 AM
Pomona · Pomona Valley Mining Co
SGVWA Quarterly Membership Meeting (Breakfast)
Thu, May 21, 8:00 AM
Pomona · Pomona Valley Mining Co
Moonlight Music Academy Faculty Concert
Fri, May 22, 7:30 PM
Brea · Curtis Theatre
Moonlight Music Academy Faculty Concert
Fri, May 22, 7:30 PM
Brea · Curtis Theatre
RANCHO RAVE - PICO RIVERA SPORTS ARENA
Sat, Jun 27, 7:30 PM
Pico Rivera · Pico Rivera Sports Arena
RANCHO RAVE - PICO RIVERA SPORTS ARENA
Sat, Jun 27, 7:30 PM
Pico Rivera · Pico Rivera Sports Arena

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:

Taste of Brea 2026

DAY 1 SATURDAY - SUMMER BASH

2026 Office of Academic Innovation Summer Conference

Which events are currently trending in Diamond Bar?

The trending searches this month in Diamond Bar are:

living trust and estate planning seminar

free kids event

Which events are coming up?

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

Mother's Day Concert: An Evening Celebrating Love, Music, and Candlelight

Mayor's Prayer Breakfast

HIMSS SoCal Annual CXO Event

Loteria Game Night!!