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Events in

Diamond Bar, California

Find events in Diamond Bar to connect with people who share your interests. Whatever your interest, Meetup helps you connect with like-minded people.

Events in Diamond Bar, California

Events in Diamond Bar

Browse the most popular activities in Diamond Bar

OpenClaw 101: Practical AI, Smarter Workflows, and Secure Setup

OpenClaw 101: Practical AI, Smarter Workflows, and Secure Setup

by I Build with AI
HAPPY HOUR NETWORKING

HAPPY HOUR NETWORKING

by NOC Business Referral Network
Weekday Wind-down: Casual Board Game Night @ Haven City Market

Weekday Wind-down: Casual Board Game Night @ Haven City Market

by Tabletop Therapy: Board Games Group
BrewMeisters Toastmasters

BrewMeisters Toastmasters

by District 100 Toastmasters
Board of Games: Monday Nites at Roscoes.

Board of Games: Monday Nites at Roscoes.

by Board of Games
St. Patty's Day...Let's Wear the Color of the Day & Have Early Dinner at Mimi's

St. Patty's Day...Let's Wear the Color of the Day & Have Early Dinner at Mimi's

by The Sunshine Gals
Anaheim, California, USA Vibrant Indian Singles Speed Meetup

Anaheim, California, USA Vibrant Indian Singles Speed Meetup

by Indian Heritage Singles Social Network
$31.00
NIXON PRESIDENTIAL LIBRARY AND MUSEUM - PRIVATE GUIDED TOUR

NIXON PRESIDENTIAL LIBRARY AND MUSEUM - PRIVATE GUIDED TOUR

by SO CAL EXPLORERS - Field trips for adults

Events in Diamond Bar today

Check out the best activities in Diamond Bar today

Toastmasters at Fullerton Free

Toastmasters at Fullerton Free

by District 100 Toastmasters
MotoDoffo Motorcycle Museum & Winery

MotoDoffo Motorcycle Museum & Winery

by Lifestyle Cycles Riding Group
Faire Build - Its Not Too Late

Faire Build - Its Not Too Late

by St Helenas Guild of the Renaissance Pleasure Fair Recruiting
March Meeting

March Meeting

by Booked For the Night
Hybrid Sunday Spiritual Gathering

Hybrid Sunday Spiritual Gathering

by Progressive Christianity Group
$77.00
Reclaiming Your Inner Child

Reclaiming Your Inner Child

by The Healing and Transformation Center
Free CNC Router Workshop-Learn-Design-Make and Take home

Free CNC Router Workshop-Learn-Design-Make and Take home

by UMakers Meetup Group
"Your Soul Is Welcome Here!" Sunday Uplift Service

"Your Soul Is Welcome Here!" Sunday Uplift Service

by Center for Spiritual Living Fullerton

Events in Diamond Bar this weekend

Browse the most interesting activities of the weekend in Diamond Bar

Singles 50+ Live Music & Dance 💃 with the RemiX Band @ Roscoe's 🎸- Fullerton

Singles 50+ Live Music & Dance 💃 with the RemiX Band @ Roscoe's 🎸- Fullerton

by Fun Events in Orange County
Let's dance at Azo Vino

Let's dance at Azo Vino

by Southern Cal Fun Friends (50 & up)
PUPPY YOGA/PILATES - YORBA LINDA

PUPPY YOGA/PILATES - YORBA LINDA

by SO CAL EXPLORERS - Field trips for adults
Spring Celebration- All-You-Can-Eat Bunch of Lunch@ Shakey’s in La Habra

Spring Celebration- All-You-Can-Eat Bunch of Lunch@ Shakey’s in La Habra

by OC Good Life
10,000 Steps Hikes

10,000 Steps Hikes

by Puente Hills Preserve Hikers
Zen Meditation (Weekly)

Zen Meditation (Weekly)

by Fullerton Zen Meditation Group
Casual Afternoon Chess at the Library

Casual Afternoon Chess at the Library

by Cucamonga Chess
Dungeons And Dragons (5E)

Dungeons And Dragons (5E)

by Game Nights Gaming Group

Most popular groups in Diamond Bar

And if you don't find the right group for you, you can always start your own!

Organize your own group in Diamond Bar, California

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Frequently Asked Questions

If you want to meet new people, socialize more, or even explore dating-friendly events in Diamond Bar, you'll find plenty of group activities or singles-friendly meetups here. These events are a great way to connect naturally and avoid feeling lonely while having fun.

Absolutely! From hiking groups to relaxed outdoor walks, you can check out all our open-air events here

Yes! From running and yoga to football, volleyball, and fitness classes, you can discover a wide range of sports and active meetups in Diamond Bar here

You can discover concerts, open-mic nights, DJ sets, and other live music events in Diamond Bar right here

Yes! To see everything taking place today—from workshops to social gatherings—just check the full list here

You can browse all upcoming weekend events in Diamond Bar—including outdoor meetups, social activities, and more—here

Meet new people in Diamond Bar

Find the best activities to meet new friends in Diamond Bar

🧡 Remix Dance Party💃 3/21 Saturday Nite! @ Roscoe's Fullerton

🧡 Remix Dance Party💃 3/21 Saturday Nite! @ Roscoe's Fullerton

by Orange County Free Concerts
Speed Dating Event! 45-60💘 Registration Required!

Speed Dating Event! 45-60💘 Registration Required!

by SoCal Singles
Who’s ready to dream big? ✨ Accountability Group discussion over Dessert

Who’s ready to dream big? ✨ Accountability Group discussion over Dessert

by Friends Network Zone
BRACKETT FIELD AIRPORT: WATCH PLANES "TOUCH AND GO" MARCH 26

BRACKETT FIELD AIRPORT: WATCH PLANES "TOUCH AND GO" MARCH 26

by Prime Time Seniors Group, Age 60+
Free Nixon Library Admission All Day Long! Pat Nixon Day of Service.

Free Nixon Library Admission All Day Long! Pat Nixon Day of Service.

by OC Good Life
Pickleball @ Maple Hill Park! 3.0 and above only!

Pickleball @ Maple Hill Park! 3.0 and above only!

by Friends Network Zone
TUFFREE COURT in PLACENTIA!

TUFFREE COURT in PLACENTIA!

by Friends Network Zone
Speed Dating Event 30's/40's 💘 Registration Required!

Speed Dating Event 30's/40's 💘 Registration Required!

by SoCal Singles

Outdoor activities in Diamond Bar

Find the best outdoor activities and adventures in Diamond Bar

RESCHEDULE: Skyline Trail/Buddhist Temple Hike

RESCHEDULE: Skyline Trail/Buddhist Temple Hike

by Sierra Club - Puente/Chino Hills Task Force
OCCATS March Happy Hour Mixer (in Anaheim Hills)

OCCATS March Happy Hour Mixer (in Anaheim Hills)

by Orange County, CA Travelers (OCCATS), Women Only, 50+
Chino Hills State Park-Horse Trails Parking (Moderate - Level 2)

Chino Hills State Park-Horse Trails Parking (Moderate - Level 2)

by HikingOC (Meet to Hike in Orange County & Travel the World)
10,000 Steps Hikes

10,000 Steps Hikes

by Puente Hills Preserve Hikers
OCCATS Pickleball (Beginners and Intermediates) & Lunch

OCCATS Pickleball (Beginners and Intermediates) & Lunch

by Orange County, CA Travelers (OCCATS), Women Only, 50+
RESCHEDULED: Skyline Trail/Buddhist Temple Hike (Hacienda Heights)

RESCHEDULED: Skyline Trail/Buddhist Temple Hike (Hacienda Heights)

by INLAND EMPIRE Outdoor Adventurers
RESCHEDULE: Skyline Trail/Buddhist Temple Hike - Hacienda Heights (PCHTF)

RESCHEDULE: Skyline Trail/Buddhist Temple Hike - Hacienda Heights (PCHTF)

by Orange County Sierrans
10,000 Steps Hikes

10,000 Steps Hikes

by Puente Hills Preserve Hikers

Sports & Fitness events in Diamond Bar

Find the best activities for sports and fitness enthusiasts in Diamond Bar

SUN @ 4pm Yorba Linda Grass Volleyball (All Levels)

SUN @ 4pm Yorba Linda Grass Volleyball (All Levels)

by SoCal Grass Volleyball
$5.00
RENEW SPORTS - BEGINNERS/INTERMEDIATE VOLLEYBALL

RENEW SPORTS - BEGINNERS/INTERMEDIATE VOLLEYBALL

by 🏀 Renew Sports Gym (Basketball, Volleyball, Pickleball)🏐🏓
🏀 Basketball Pick-Up 5v5 - INDOOR! 🙌 (Fullerton)

🏀 Basketball Pick-Up 5v5 - INDOOR! 🙌 (Fullerton)

by 🏀 Renew Sports Gym (Basketball, Volleyball, Pickleball)🏐🏓
ASP Chino Hills Social Run & New Balance Ellipse Launch Demo

ASP Chino Hills Social Run & New Balance Ellipse Launch Demo

by A Snail's Pace Running Shop Weekly Runs
Brea Social Run & New Balance Ellipse Launch Demo

Brea Social Run & New Balance Ellipse Launch Demo

by A Snail's Pace Running Shop Weekly Runs
Bonelli Loops

Bonelli Loops

by Cycling Connection Rancho Cucamonga
$20.00
Women in Movement Zumba Class

Women in Movement Zumba Class

by Latinas Fit Tribe
Friday Morning Indoor Open Gym Volleyball @E.A.G December 2025

Friday Morning Indoor Open Gym Volleyball @E.A.G December 2025

by Fullerton Volleyball

Live music events in Diamond Bar

Find the best activities for music lovers in Diamond Bar

March Meetup

March Meetup

by Orange County Piano Enthusiasts Meetup Group
Free Neighborhood Jazz Concert!

Free Neighborhood Jazz Concert!

by Fullerton Contemplative Piano Music Meetup
Monthly Meet Up - Flip the Sample!

Monthly Meet Up - Flip the Sample!

by Digital Music Production OC
Contemplative piano music

Contemplative piano music

by Fullerton Contemplative Piano Music Meetup
Sing for Fun – Join Our Weekly Barbershop Chorus Rehearsal

Sing for Fun – Join Our Weekly Barbershop Chorus Rehearsal

by Orange Empire Chorus
Contemplative improvised piano

Contemplative improvised piano

by Fullerton Contemplative Piano Meetup
Karaoke Every Tuesday & Thursday

Karaoke Every Tuesday & Thursday

by Karaoke Every Tuesday & Thursday Nights at Bigs Fullerton