Free Events and Things to do in Diamond Bar, CA

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

Almost full
Latest in ICL - 2HR CE Dinner - Dr. Rowen
Thu, Mar 19, 6:30 PM
Brea · Cedar Creek Inn
Almost full
Latest in ICL - 2HR CE Dinner - Dr. Rowen
Thu, Mar 19, 6:30 PM
Brea · Cedar Creek Inn
Ontario Art Book Fair
Sat, Mar 28, 11:00 AM
Ontario · Ontario Museum of History & Art
Ontario Art Book Fair
Sat, Mar 28, 11:00 AM
Ontario · Ontario Museum of History & Art
Deals In Heels Women's Mastermind
Thu, Mar 19, 12:00 PM
Upland · 1945 W 9th St
Deals In Heels Women's Mastermind
Thu, Mar 19, 12:00 PM
Upland · 1945 W 9th St
Going fast
Storyteller's Festival | Arts, Film, Music, and Poetry
Fri, May 1, 5:00 PM
Claremont · 1050 N Mills Ave
Going fast
Storyteller's Festival | Arts, Film, Music, and Poetry
Fri, May 1, 5:00 PM
Claremont · 1050 N Mills Ave
Thursday Nights at The Union – Hello Spring Market
Thu, Mar 19, 5:00 PM
Pomona · 350 N Garey Ave
Thursday Nights at The Union – Hello Spring Market
Thu, Mar 19, 5:00 PM
Pomona · 350 N Garey Ave
Turning Discarded Clothing Into a World of Change
Sun, Mar 22, 3:00 PM
Brea · Live Oak United Church of Christ (formerly Brea Congregational Church)
Turning Discarded Clothing Into a World of Change
Sun, Mar 22, 3:00 PM
Brea · Live Oak United Church of Christ (formerly Brea Congregational Church)
Hoppy Together: An Easter Community Event
Sat, Apr 4, 1:00 PM
Ontario · Veterans of Foreign Wars Post 2085 Old Baldy Post
Hoppy Together: An Easter Community Event
Sat, Apr 4, 1:00 PM
Ontario · Veterans of Foreign Wars Post 2085 Old Baldy Post
Sales end soon
LA+OC Business Connection Meetup (Orange County)
Monday at 5:30 PM
Fullerton · Dripp
Sales end soon
LA+OC Business Connection Meetup (Orange County)
Monday at 5:30 PM
Fullerton · Dripp
Almost full
Golden Future Senior Expo - Southeast Los Angeles Edition
Sat, Apr 11, 9:00 AM
Norwalk · DoubleTree by Hilton Hotel Los Angeles - Norwalk
Almost full
Golden Future Senior Expo - Southeast Los Angeles Edition
Sat, Apr 11, 9:00 AM
Norwalk · DoubleTree by Hilton Hotel Los Angeles - Norwalk
Sales end soon
St. Patrick’s Bash with The RJ Band
Saturday at 6:00 PM
Glendora · Clubhouse 66
Sales end soon
St. Patrick’s Bash with The RJ Band
Saturday at 6:00 PM
Glendora · Clubhouse 66
Almost full
Electric Bike Demo + E-Bike Membership Giveaway
Sunday at 9:00 AM
El Monte · Jeff Seymour Family Center
Almost full
Electric Bike Demo + E-Bike Membership Giveaway
Sunday at 9:00 AM
El Monte · Jeff Seymour Family Center
Chino Hills Community Workshop | April 25, 2026
Sat, Apr 25, 9:00 AM
Chino Hills · Los Serranos Country Club
Chino Hills Community Workshop | April 25, 2026
Sat, Apr 25, 9:00 AM
Chino Hills · Los Serranos Country Club
Guys In Ties Mastermind
Thu, Mar 19, 12:00 PM
Upland · 1945 W 9th St
Guys In Ties Mastermind
Thu, Mar 19, 12:00 PM
Upland · 1945 W 9th St
Hello Spring Beginner Friendly Community Bike Ride
Sun, Mar 22, 9:00 AM
El Monte · ActiveSGV Headquarters @ Jeff Seymour Center/Mulhall Elementary School
Hello Spring Beginner Friendly Community Bike Ride
Sun, Mar 22, 9:00 AM
El Monte · ActiveSGV Headquarters @ Jeff Seymour Center/Mulhall Elementary School
Healed without scars - One Day Conference
Sat, Mar 28, 8:30 AM
West Covina · 114 S Glendora Ave
Healed without scars - One Day Conference
Sat, Mar 28, 8:30 AM
West Covina · 114 S Glendora Ave
Almost full
Intercare Ontario - Grand Opening
Tomorrow at 3:00 PM
Ontario · 3450 N Centre Lake Dr suite 175
Almost full
Intercare Ontario - Grand Opening
Tomorrow at 3:00 PM
Ontario · 3450 N Centre Lake Dr suite 175
Going fast
San Bernardino County Hiring Event - Rancho Cucamonga
Thu, Mar 19, 9:00 AM
Rancho Cucmamonga · Central Park - Rancho Hall
Going fast
San Bernardino County Hiring Event - Rancho Cucamonga
Thu, Mar 19, 9:00 AM
Rancho Cucmamonga · Central Park - Rancho Hall
AWAKEN HIU + CSUF
Fri, Mar 27, 7:00 PM
Fullerton · Hope International University (HIU)
AWAKEN HIU + CSUF
Fri, Mar 27, 7:00 PM
Fullerton · Hope International University (HIU)
Almost full
Meet the Machines
Saturday at 9:00 AM
Jurupa Valley · Skyview Event Center
Almost full
Meet the Machines
Saturday at 9:00 AM
Jurupa Valley · Skyview Event Center
Anaheim, CA - MercyMe Volunteers - Children Int'l
Sat, Apr 11, 4:15 PM
Anaheim · Honda Center
Anaheim, CA - MercyMe Volunteers - Children Int'l
Sat, Apr 11, 4:15 PM
Anaheim · Honda Center

Trends in Diamond Bar

Explore more trends

Frequently asked questions about Diamond Bar

What are the best free events to attend?

According to Eventbrite, the best free events are:

Latest in ICL - 2HR CE Dinner - Dr. Rowen

Ontario Art Book Fair

Deals In Heels Women's Mastermind

Storyteller's Festival | Arts, Film, Music, and Poetry

Which events are currently trending in Diamond Bar?

The trending searches this month in Diamond Bar are:

lunar new year

events happening today near me

easter egg hunt free

lunar festival

Which free events are coming up?

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

Intercare Ontario - Grand Opening

Meet the Machines

St. Patrick’s Bash with The RJ Band

Electric Bike Demo + E-Bike Membership Giveaway

Latest in ICL - 2HR CE Dinner - Dr. Rowen

Latest in ICL - 2HR CE Dinner - Dr. Rowen

Ontario Art Book Fair

Ontario Art Book Fair

Deals In Heels Women's Mastermind

Deals In Heels Women's Mastermind

Storyteller's Festival | Arts, Film, Music, and Poetry

Storyteller's Festival | Arts, Film, Music, and Poetry

Thursday Nights at The Union – Hello Spring Market

Thursday Nights at The Union – Hello Spring Market

Turning Discarded Clothing Into a World of Change

Turning Discarded Clothing Into a World of Change

Hoppy Together: An Easter Community Event

Hoppy Together: An Easter Community Event

LA+OC Business Connection Meetup (Orange County)

LA+OC Business Connection Meetup (Orange County)

Golden Future Senior Expo - Southeast Los Angeles Edition

Golden Future Senior Expo - Southeast Los Angeles Edition

St. Patrick’s Bash with The RJ Band

St. Patrick’s Bash with The RJ Band

Electric Bike Demo + E-Bike Membership Giveaway

Electric Bike Demo + E-Bike Membership Giveaway

Chino Hills Community Workshop | April 25, 2026

Chino Hills Community Workshop | April 25, 2026

Guys In Ties Mastermind

Guys In Ties Mastermind

Hello Spring Beginner Friendly Community Bike Ride

Hello Spring Beginner Friendly Community Bike Ride

Healed without scars - One Day Conference

Healed without scars - One Day Conference

Intercare Ontario - Grand Opening

Intercare Ontario - Grand Opening

San Bernardino County Hiring Event - Rancho Cucamonga

San Bernardino County Hiring Event - Rancho Cucamonga

AWAKEN HIU + CSUF

AWAKEN HIU + CSUF

Meet the Machines

Meet the Machines

Anaheim, CA - MercyMe Volunteers - Children Int'l

Anaheim, CA - MercyMe Volunteers - Children Int'l

Things to do around Diamond Bar

Trends in Diamond Bar

1. Lunar new year

2. Events happening today near me

3. Easter egg hunt free

4. Lunar festival

5. Free kids event

6. Living trust and estate planning seminar

7. Egg hunt

8. Chinese new year

9. Volunteering

10. Job fairs

11. Cumbia dancing in riverside

12. Car shows

What are the best free events to attend?

Which events are currently trending in Diamond Bar?

Which free events are coming up?