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Events and Things to do in Diamond Bar, CA

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John Paycheck live at The Cathedral
Thu, Jun 4, 8:00 PM
Pomona · The Cathedral, 350 North Garey Avenue, Pomona, CA, USA
John Paycheck live at The Cathedral
Thu, Jun 4, 8:00 PM
Pomona · The Cathedral, 350 North Garey Avenue, Pomona, CA, USA
MicroMania Midget Wrestling: Anaheim, CA at Grand Theater
Sat, Jun 6, 5:00 PM
Anaheim · The Grand Theater
MicroMania Midget Wrestling: Anaheim, CA at Grand Theater
Sat, Jun 6, 5:00 PM
Anaheim · The Grand Theater
Summer Bash 2026!
Fri, Jun 19, 6:00 PM
Anaheim · 101 E Orangethorpe Ave
Summer Bash 2026!
Fri, Jun 19, 6:00 PM
Anaheim · 101 E Orangethorpe Ave
Sales end soon
Cafecito Social | Intimate Conversations. Powerful Connections.
Thursday at 8:00 AM
Pomona · 385 N Park Ave
Sales end soon
Cafecito Social | Intimate Conversations. Powerful Connections.
Thursday at 8:00 AM
Pomona · 385 N Park Ave
Santino Bros. Wrestling presents: FIGHT NIGHT
Fri, Jun 12, 8:00 PM
Azusa · VFW Azusa Post 8070
Santino Bros. Wrestling presents: FIGHT NIGHT
Fri, Jun 12, 8:00 PM
Azusa · VFW Azusa Post 8070
Sales end soon
B.A.D BRUNCH! BRUNCH AFTER DARK UPLAND! MAY 23RD!
Saturday at 9:00 PM
Upland · Ace's Corner Lounge
Sales end soon
B.A.D BRUNCH! BRUNCH AFTER DARK UPLAND! MAY 23RD!
Saturday at 9:00 PM
Upland · Ace's Corner Lounge
909 PARTY LINE –Bringing it back to The IE
Sat, May 30, 8:00 PM
Upland · Ace's Corner Lounge
909 PARTY LINE –Bringing it back to The IE
Sat, May 30, 8:00 PM
Upland · Ace's Corner Lounge
2026 NLPOA Awards and Scholarship Luncheon
Sat, Jun 6, 12:00 PM
Pomona · Mountain Meadows Golf Course
2026 NLPOA Awards and Scholarship Luncheon
Sat, Jun 6, 12:00 PM
Pomona · Mountain Meadows Golf Course
The Latin American Party
Mon, Jun 8, 7:30 PM
Anaheim · HEAT Ultra Lounge
The Latin American Party
Mon, Jun 8, 7:30 PM
Anaheim · HEAT Ultra Lounge
Going fast
Beauty, Bubbles & Botox w/ Sophia & Bibi
Saturday at 10:00 AM
Upland · 1802 Plan Tree Dr
Going fast
Beauty, Bubbles & Botox w/ Sophia & Bibi
Saturday at 10:00 AM
Upland · 1802 Plan Tree Dr
Inland Empire SPEED DATING FOR ASIAN SINGLES Age 25-40 ♥ Ontario CA
Thu, May 28, 8:00 PM
Ontario · Brew Haven
Inland Empire SPEED DATING FOR ASIAN SINGLES Age 25-40 ♥ Ontario CA
Thu, May 28, 8:00 PM
Ontario · Brew Haven
Almost full
Building a Portfolio of Stocks for 2031
Sat, Jun 13, 2:30 PM
Orange · Orange Public Library
Almost full
Building a Portfolio of Stocks for 2031
Sat, Jun 13, 2:30 PM
Orange · Orange Public Library
** IN PERSON ** General Membership Meeting, June 17, 2026
Wed, Jun 17, 6:00 PM
Fullerton · The Old Spaghetti Factory
** IN PERSON ** General Membership Meeting, June 17, 2026
Wed, Jun 17, 6:00 PM
Fullerton · The Old Spaghetti Factory
#IMPARABLES 10º ANIVERSARIO
Ontario · Ontario Convention Center
#IMPARABLES 10º ANIVERSARIO
Ontario · Ontario Convention Center
Tierra Legacy and Original Mary Jane Girls at the Cathedral in Pomona
Sat, Jul 11, 7:00 PM
Pomona · 350 S Garey Ave
Tierra Legacy and Original Mary Jane Girls at the Cathedral in Pomona
Sat, Jul 11, 7:00 PM
Pomona · 350 S Garey Ave
Beginners Sewing Mermaid Pillow Class Whittier
Sun, May 31, 10:00 AM
Whittier · The Upcycled Home
Beginners Sewing Mermaid Pillow Class Whittier
Sun, May 31, 10:00 AM
Whittier · The Upcycled Home
Thunderstorm Artis Live at The Cathedral
Sun, Jun 21, 6:00 PM
Pomona · The Cathedral Pomona
Thunderstorm Artis Live at The Cathedral
Sun, Jun 21, 6:00 PM
Pomona · The Cathedral Pomona
Damage Inc, Southern California's tribute to Metallica
Sat, May 30, 7:00 PM
Buena Park · Rock & Brews
Damage Inc, Southern California's tribute to Metallica
Sat, May 30, 7:00 PM
Buena Park · Rock & Brews
Going fast
Vista Drag Bingo
Sat, Jun 20, 10:00 AM
Anaheim · Parkside Market
Going fast
Vista Drag Bingo
Sat, Jun 20, 10:00 AM
Anaheim · Parkside Market
4th Annual TSCL Mental Health Awareness 5K
Sat, May 30, 7:00 AM
Claremont · Claremont High School (Track & Campus)
4th Annual TSCL Mental Health Awareness 5K
Sat, May 30, 7:00 AM
Claremont · Claremont High School (Track & Campus)

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:

John Paycheck live at The Cathedral

MicroMania Midget Wrestling: Anaheim, CA at Grand Theater

Summer Bash 2026!

Santino Bros. Wrestling presents: FIGHT NIGHT

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:

Cafecito Social | Intimate Conversations. Powerful Connections.

Beauty, Bubbles & Botox w/ Sophia & Bibi

B.A.D BRUNCH! BRUNCH AFTER DARK UPLAND! MAY 23RD!

Inland Empire SPEED DATING FOR ASIAN SINGLES Age 25-40 ♥ Ontario CA