Discover 215+ events in Ontario, CA happening this week. Concerts, parties, dance nights, festivals & more. Updated daily — see what's trending tonight.
Fun, confidence-building jiu-jitsu for ages 3–6. Playful classes focused on movement, listening skills & basic self-defense.
4-Day PMP Certification Classroom Training in Alta | 35 Contact Hours | Live Instructor-Led | 8th Edition 2026 Exam Prep
Strive welcomes you to 'Finance and Business Networking', an event for tenured and newcomers at 4th & Mill! Event is 21+.Limited Tickets.

A free online game of power, betrayal, and silent influence. Bluff your way to victory!
Are you in search of new connections? Meet others in the city over fun food and a relaxed atmosphere through our dinner series!
Ontario Jrs Reign Vs. Fresno Monsters Get ready for an epic face-off between the Ontario Jrs Reign and the Vernal Oilers! This exciting in-person event is perfect for hockey fa

Join us for a night of learning how to secure your financial future with passive income streams at "Your Passport to Residual Income" event!
Get ready to celebrate Marine Corps pride with good vibes and great company at the ultimate birthday bash! EVERYONE IS WELCOME
B2B Mixer Ontario — 100% Networking. Real Conversations. Real Referrals. A monthly 100% networking event for making and receiving referrals with like-minded businesses in Onta
Fun, confidence-building jiu-jitsu for ages 3–6. Playful classes focused on movement, listening skills & basic self-defense.
What we will understand, practice, and take home: Understand the Change: How seasonal transitions impact predictability, flexibility, and emotions. Recognize & Prepare: Id
California Dream Team Steppin B • Jesse Roy • Byron Woods • Joel Preach Present: Mask Weekend 2026 FRIDAY • October 30 • 7 PM – 12 AM 5th Annual Masq
Ontario Jrs Reign Vs. Fresno Monsters Get ready for an epic face-off between the Ontario Jrs Reign and the Vernal Oilers! This exciting in-person event is perfect for hockey fa
Enjoy a delicious holiday breakfast with family and friends in the Rainforest. Take pictures with Santa, write letters to Santa, and more!
Travel • Entrepreneurship • Networking • Opportunity Do you love vacations, cruises, weekend getaways, road trips, or simply helping others create amazing memories? Have you
Dynamic, skill-building jiu-jitsu for ages 7–14. Classes focused on strength, discipline, confidence & real self-defense.
Explore the art of printmaking through food-inspired designs in this hands-on workshop in collaboration with Cindita’s Tiendita. Stop by anytime for this drop-in experience to ex
Qigong is an ancient Chinese energy healing practice. Translated as "Life Force Cultivation," it involves gentle, meditative movement and breathwork. Qigong promotes overall wellne
Youth Kids Brazilian Jiu-Jitsu at Anchor Jiu-Jitsu Club Our Youth program is designed for children and pre-teens ages 7–14. Students learn authentic Brazilian Jiu-Jitsu while buil
Get ready for a fab Friday Night Drag Dinner Show with fierce queens, tasty bites, and nonstop fun!
Holiday Extravaganza Charity Fundraiser Celebrate an unforgettable evening of music, inspiration, and giving back at the Special Angels Foundation Holiday Extravaganza Charity F
4-Day PMP Certification Classroom Training in Alta | 35 Contact Hours | Live Instructor-Led | 8th Edition 2026 Exam Prep
About This Event Looking for something fun and enriching to do this weekend in Ontario? STEM Family Sundays at iFLY Ontario are the only weekend family activity where le

Join us for a night of learning how to secure your financial future with passive income streams at "Your Passport to Residual Income" event!
Dynamic, skill-building jiu-jitsu for ages 7–14. Classes focused on strength, discipline, confidence & real self-defense.