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Events and Things to do in Diamond Bar, CA

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

56th Annual Opal Show
Sat, Oct 24, 10:00 AM + 1 more
Orange · 300 S Flower St
56th Annual Opal Show
Sat, Oct 24, 10:00 AM + 1 more
Orange · 300 S Flower St
Claremont Supper Club Present: Claremont by Candlelight
Thu, Apr 9, 6:00 PM
Claremont · Garner House
Claremont Supper Club Present: Claremont by Candlelight
Thu, Apr 9, 6:00 PM
Claremont · Garner House
ROZ at Glass House - CA
Thu, Apr 9, 8:00 PM
Pomona · The Glass House Concert Hall
ROZ at Glass House - CA
Thu, Apr 9, 8:00 PM
Pomona · The Glass House Concert Hall
Live Jazz Brunch at Visionarium with Cheryl D. Barnes
Sat, Mar 28, 12:00 PM
South Pasadena · 1020 Mission St
Live Jazz Brunch at Visionarium with Cheryl D. Barnes
Sat, Mar 28, 12:00 PM
South Pasadena · 1020 Mission St
Joe Wonderment Magic @Tacitas
Fri, Apr 10, 6:00 PM
Diamond Bar · 574 N Diamond Bar Blvd
Joe Wonderment Magic @Tacitas
Fri, Apr 10, 6:00 PM
Diamond Bar · 574 N Diamond Bar Blvd
Paint and Sip: Watercolor Edition
Fri, Apr 10, 7:00 PM
La Puente · Feathered Serpent Brewery
Paint and Sip: Watercolor Edition
Fri, Apr 10, 7:00 PM
La Puente · Feathered Serpent Brewery
Sales end soon
Altadena: Between Wilderness and City with Michele Zack
Thursday at 7:00 PM
Pasadena · Pasadena Museum of History
Sales end soon
Altadena: Between Wilderness and City with Michele Zack
Thursday at 7:00 PM
Pasadena · Pasadena Museum of History
Beach Country Fest ft Whey Jennings and Elijah Scott
Mon, May 25, 3:00 PM
Rancho Cucamonga · Epic Events Center
Beach Country Fest ft Whey Jennings and Elijah Scott
Mon, May 25, 3:00 PM
Rancho Cucamonga · Epic Events Center
✨Holy Fire® Reiki 1 & 2 Certification – Pasadena, CA✨
Sun, Mar 29, 1:30 PM
Pasadena · theAC Awareness Center
✨Holy Fire® Reiki 1 & 2 Certification – Pasadena, CA✨
Sun, Mar 29, 1:30 PM
Pasadena · theAC Awareness Center
Vision & Vibes Creators' Summit
Sat, Sep 19, 11:00 AM
Rosemead · 888 Montebello Blvd
Vision & Vibes Creators' Summit
Sat, Sep 19, 11:00 AM
Rosemead · 888 Montebello Blvd
"Oracles: Prophecy, Divination, Portals" Dr Rietveld Zoom Talk-April 9, 8pm
Thu, Apr 9, 8:00 PM
Fullerton · Ipso Facto
"Oracles: Prophecy, Divination, Portals" Dr Rietveld Zoom Talk-April 9, 8pm
Thu, Apr 9, 8:00 PM
Fullerton · Ipso Facto
Onejudoka Footsweep Seminar Pt. 2
Sat, Apr 11, 12:00 PM
Glendora · The Lair Jiu Jitsu
Onejudoka Footsweep Seminar Pt. 2
Sat, Apr 11, 12:00 PM
Glendora · The Lair Jiu Jitsu
Sculpt Pilates Hillcrest Fullerton
Sat, Apr 11, 11:00 AM
Fullerton · 1155 N Lemon St
Sculpt Pilates Hillcrest Fullerton
Sat, Apr 11, 11:00 AM
Fullerton · 1155 N Lemon St
626 Night Market - Costa Mesa | May 29-31, 2026
Fri, May 29, 3:00 PM
Costa Mesa · OC Fair & Event Center
626 Night Market - Costa Mesa | May 29-31, 2026
Fri, May 29, 3:00 PM
Costa Mesa · OC Fair & Event Center
Centennial Celebration Sunday Horse Show - April 2026
Sun, Apr 12, 12:30 PM
Pomona · W.K. Kellogg Arabian Horse Center
Centennial Celebration Sunday Horse Show - April 2026
Sun, Apr 12, 12:30 PM
Pomona · W.K. Kellogg Arabian Horse Center
Bollywood Dance Fitness Night!
Wed, Apr 8, 6:30 PM
Fullerton · 770 S Harbor Blvd
Bollywood Dance Fitness Night!
Wed, Apr 8, 6:30 PM
Fullerton · 770 S Harbor Blvd
Botox Training - Orange County, CA
Sat, May 30, 8:00 AM
Orange Country · Hotel to be announced
Botox Training - Orange County, CA
Sat, May 30, 8:00 AM
Orange Country · Hotel to be announced
Dermal Filler Training - Orange County, CA
Sat, May 30, 1:00 PM
Orange Country · Hotel to be announced
Dermal Filler Training - Orange County, CA
Sat, May 30, 1:00 PM
Orange Country · Hotel to be announced
Toffee Easter Egg Hunt
Sat, Apr 4, 11:00 AM
Fullerton · Toffeetots
Toffee Easter Egg Hunt
Sat, Apr 4, 11:00 AM
Fullerton · Toffeetots
IXL Live Immersive: Analytics - Pasadena, CA (Apr. 16)
Thu, Apr 16, 12:30 PM
Pasadena · Hilton Pasadena
IXL Live Immersive: Analytics - Pasadena, CA (Apr. 16)
Thu, Apr 16, 12:30 PM
Pasadena · Hilton Pasadena

Trends in Diamond Bar

Explore more trends

Explore more trends

Frequently asked questions about Diamond Bar

What are the best events to attend?

According to Eventbrite, the best events are:

56th Annual Opal Show

Claremont Supper Club Present: Claremont by Candlelight

ROZ at Glass House - CA

Joe Wonderment Magic @Tacitas

Which events are currently trending in Diamond Bar?

The trending searches this month in Diamond Bar are:

easter egg hunt free

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:

Altadena: Between Wilderness and City with Michele Zack

Live Jazz Brunch at Visionarium with Cheryl D. Barnes

✨Holy Fire® Reiki 1 & 2 Certification – Pasadena, CA✨

Toffee Easter Egg Hunt