Halloween events in Costa Mesa

Check out happening halloween events all around Costa Mesa, CA

The Boo Ha Ha is BACK at the OC Fairgrounds

Sat, 25 Oct at 05:00 pm OC Fair

Halloween Swingthing 2025

Thu, 23 Oct at 08:00 pm Hilton Orange County/Costa Mesa (3050 Bristol St, Costa Mesa, CA)

PAINT WINE EXPERIENCE: SPOOKY NIGHT

Sat, 25 Oct at 06:00 pm Inspired Art Wine USD 54

2025 Halloween Party

Fri, 31 Oct at 06:00 pm Central Costa Mesa

Maggiano's South Coast Plaza The Haunted Mixology Lab

Thu, 23 Oct at 07:00 pm 3333 S Bristol St USD 106

WATERCOLOR WORKSHOP (HALLOWEEN)-- FRAME INCLUDED!

Sat, 11 Oct at 01:00 pm Inspired Art Wine USD 107

Zombie Prom Halloween Night: San Pacho

Thu, 30 Oct at 04:00 pm Time Nightclub - CA

KIDS IMAGINE NATION ~ Scarecrow Fest

Sat, 11 Oct at 02:00 pm Lions Park

DROC x Ducati Newport Beach Bike Night – October 2025

Thu, 23 Oct at 06:30 pm Ducati Newport Beach