Skip to content

Costume Parties San Francisco

Join Costume Parties and Meet Enthusiasts in San Francisco

Cemetery Walk

Sat, Dec 19, 7:00 PM
From Halloween Addicts Group Support (HAGS)
4.7
3 attendees
Startup World Cup Grand Finale

Startup World Cup Grand Finale

Wed, Nov 4, 5:00 PM
From Startup World Cup

Registration: [https://swcgf26.eventbrite.com] Startup World Cup Grand Finale: [www.startupworldcup.io/grand-finale](http://www.startupworldcup.io/grand-finale) **Join us for the Startup World Cup Grand Finale!** Hosted by Pegasus Tech Ventures, Startup World Cup is a global startup pitch competition that brings together ambitious entrepreneurs, venture capitalists, corporate leaders, and technology innovators. Watch outstanding startups compete on a global stage for a $1 million investment prize, connect with investors and industry leaders, and discover groundbreaking ideas shaping the future of technology. The event offers opportunities to network with founders, explore emerging technologies, attend insightful speaker panels, and build meaningful business connections within the global startup ecosystem. Whether you're a founder looking to grow your business, an investor seeking the next big opportunity, or a technology enthusiast passionate about innovation, Startup World Cup is where connections turn into possibilities. **Event Details:** * **Semi Finals (Day 1):** November 4\, 2026 \| 9AM \- 6PM * **Semi Finals (Day 2):** November 5\, 2026 \| 9AM \- 12PM * **Corporate Innovation Seminar:** November 5\, 2026 \| 2PM \- 5:30PM * **Grand Finale:** November 6\, 2026 \| 9AM \- 6PM * **Networking Party:** November 6\, 2026 \| 6PM \- 8:30PM * **Location:** Hilton San Francisco Union Square

  • Photo of the user
5 attendees
Pee-Wee Paws Howl-o-ween Meetup & Beach side Costume Parade

Pee-Wee Paws Howl-o-ween Meetup & Beach side Costume Parade

Sun, Nov 1, 11:00 PM
From PeeWee Paws Small Dog Meetup
5.0

Join Pee-Wee Paws for Halloween fun with costumes, trick-or-treating, photos, treats, games, playtime, and a beach side pack walk costume parade! Costumes are welcome but not required. 📅 Sunday, November 1st 📍 Alameda Small Dog Park 1300 8th St, Alameda ⏰ 3–5 PM Come play, socialize, and celebrate Halloween with the little dogs! 👻🐾

  • Photo of the user
  • Photo of the user
  • Photo of the user
4 attendees
East Bay Chihuahua Halloween Meetup & Beach side Costume Parade

East Bay Chihuahua Halloween Meetup & Beach side Costume Parade

Sun, Nov 1, 11:00 PM
From East Bay Chihuahuas Meetup
5.0

Join our sister group Pee-Wee Paws Small Dog Meetup Group! 🐾❤️🐾 Join Pee-Wee Paws for Halloween fun with costumes, trick-or-treating, photos, treats, games, playtime, and a beach side pack walk costume parade! Costumes are welcome but not required. 📅 Sunday, November 1st 📍 Alameda Small Dog Park 1300 8th St, Alameda ⏰ 3–5 PM 🐕 All friendly small-dog friends are welcome! Come play, socialize, and celebrate Halloween with the little dogs! 👻🐾

  • Photo of the user
  • Photo of the user
2 attendees
San Francisco State University - Day of The Dead Concierto & Fiesta!

San Francisco State University - Day of The Dead Concierto & Fiesta!

Sun, Nov 1, 10:00 PM
From " Ⓒulture, Ⓒuisine, Ⓒocktails, Ⓒoffee & Ⓒonvos = Ⓒommunity'
4.5

Celebrate Día de los Muertos with Music, Memory, and Fiesta Join the Golden Gate Symphony Orchestra & Chorus for an hour of moving music under Music Director Urs Leonhardt Steiner — then let the party begin! Stay for a full-on fiesta: with music, dancing, delicacies, and a community altar honoring loved ones. Dress up in color and celebrate life and your loved ones with the Golden Gate Symphony! Benicia Clocktower – Sat, 10/31/26, 2pm SF State McKenna Theatre – Sun, 11/1/26, 2pm Discounts for seniors & youth & SFSU students & faculty https://sfsu.universitytickets.com/w/event.aspx?id=1724

  • Photo of the user
  • Photo of the user
  • Photo of the user
3 attendees
Mix & Mingle, 50+

Mix & Mingle, 50+

Sun, Nov 1, 11:00 PM
From SF Peninsula Wine Tasting, Speed Dating, & Parties
4.8

Meet new single friends, 50+, at an upscale hotel! Make connections easily with our FUN Mixer Game. Dress to impress and join us for a memorable afternoon. WHEN: Sunday, Nov 1st, 2026, 3-5pm. WHERE: [DoubleTree by Hilton Hotel SFO](https://www.hilton.com/en/hotels/sfoaodt-doubletree-san-francisco-airport/), 835 Airport Blvd, Burlingame CA. We ask everyone to purchase at least one drink, so this fine venue invites us back. The hotel front desk will validate your parking ticket! **[TICKETS](https://www.eventbrite.com/e/peninsula-mixer-for-50-tickets-1999055415561?aff=oddtdtcreator&keep_tld=true)**: $45 (early birds). $55 at the door (if space permits). Don't wait, as these events often sell out! If you want to buy tickets, please click **[HERE](https://www.eventbrite.com/e/peninsula-mixer-for-50-tickets-1999055415561?aff=oddtdtcreator&keep_tld=true)**. Your RSVP on meetup is NOT a ticket and you will need to purchase a ticket at the door if space is available. CO-SPONSORED by *The Society of Single Professionals, Singles Bay Area*, and dozens of singles organizations and meetups. All events benefit [The Seva Foundation](https://www.seva.org/), to restore sight to the blind. MORE PARTIES at [[www.thepartyhotline.com](http://www.thepartyhotline.com/)](). ¡ [Speed Dating for 40s/50s at fun hotel](https://www.eventbrite.com/e/speed-dating-for-40s50s-at-fun-union-square-hotel-tickets-1995325455149?aff=oddtdtcreator&keep_tld=true), Oct 10, San Francisco ¡ [Master Speed Dating!](https://www.eventbrite.com/e/master-speed-dating-online-seminar-for-men-tickets-2000213001933?aff=oddtdtcreator&keep_tld=true) Online Seminar, all ages, Oct 11 ¡ [Salsa Saturday!](https://www.eventbrite.com/e/salsa-saturday-tickets-2001938799841?aff=oddtdtcreator&keep_tld=true) All ages, Oct 17, Novato ¡ [Single and Ready to Mingle](https://www.eventbrite.com/e/single-and-ready-to-mingle-50-tickets-1998161677366?aff=oddtdtcreator&keep_tld=true), 50+, Oct 18, Tiburon ¡ [Asian Singles & Those Who Love Them](https://www.eventbrite.com/e/asian-singles-those-who-love-them-tickets-2002848833777?keep_tld=true), all ages, Oct 18, Los Gatos ¡ [Peninsula Speed Dating for 30s/40s](https://www.hilton.com/en/hotels/sfosadt-doubletree-san-francisco-airport-south-blvd/), Oct 25, South San Francisco ¡ [Rooftop Party at Spectacular Hotel](https://www.eventbrite.com/e/rooftop-party-at-lovely-napa-hotel-tickets-2001262960387?aff=oddtdtcreator&keep_tld=true), 40+, Oct 25, Napa ¡ [Fresh Start Social](https://www.eventbrite.com/e/fresh-start-social-for-divorced-or-separated-tickets-2002479534192?aff=oddtdtcreator&keep_tld=true), adults of all ages, Oct 29, San Francisco ¡ [Halloween Party](https://www.eventbrite.com/e/halloween-party-for-single-professionals-21-49-tickets-1999052946175?aff=oddtdtcreator&keep_tld=true), 21-49, Oct 31, San Francisco ¡ [Halloween Party](https://www.eventbrite.com/e/halloween-costume-party-dance-for-single-professionals-50-tickets-1999054831815?aff=oddtdtcreator&keep_tld=true), 50+, Oct 31, Mill Valley ¡ Halloween Party, adults of all ages, Oct 31, Silicon Valley (TBA) ¡ [Peninsula 50+ Mixer](https://www.eventbrite.com/e/peninsula-mixer-for-50-tickets-1999055415561?aff=oddtdtcreator&keep_tld=true), Nov 1, Burlingame ¡ [Sonoma Wine Country Tasting & Party](https://www.eventbrite.com/e/sonoma-wine-country-wine-tasting-party-for-single-professionals-tickets-2002850867861?aff=oddtdtcreator&keep_tld=true), 40+, Nov 5, Windsor ¡ [Silicon Valley Speed Dating](https://www.eventbrite.com/e/silicon-valley-speed-dating-for-40s50s-tickets-2002851209884?aff=oddtdtcreator&keep_tld=true), 40s/50s, Nov 11, Palo Alto ¡ [Asian Singles & Those Who Love Them](https://www.eventbrite.com/e/asian-singles-those-who-love-them-tickets-2002765438339?aff=oddtdtcreator&keep_tld=true), adults of all ages, Nov 15, Newark/Fremont ¡ Marin Christmas Mixer, 40+, Dec 13, Tiburon ¡ Silicon Valley Christmas Mixer, 50+, Dec 15, Campbell FOLLOW US ON **[INSTAGRAM](https://www.instagram.com/singlesbayarea/)**. **[VIDEO](https://www.instagram.com/p/DETWrxSvvvW/)** from our New Years Eve Bash. PLEASE NOTE: The number of people who RSVP on this meetup doesn't reflect all who have registered or will be attending. We promote our events on 26 different singles meetups and dozens of major websites, including *Facebook, Twitter, Yelp, Yahoo, Google*, etc., plus email blasts to thousands of Bay Area singles.

  • Photo of the user
  • Photo of the user
13 attendees
430kMonthly events
calendar icon
60mMembers
people1 icon
4.5App store rating
appStore icon
200kGroups
people2 icon

Frequently asked questions

Meetup is a platform connecting people through local group events both online and in-person based on shared interests.

Simply search on Meetup for costume party events in San Francisco. You'll discover various themed gatherings you can join and participate in.

Absolutely! You can join several groups based on different interests, including costume parties, to widen your social experience.

Expect a fun social atmosphere where attendees dress up, enjoy themed activities, and meet new people in a casual setting.

Many events on Meetup are free. However, some groups may charge a small fee for event participation to cover costs.

Yes, RSVP is necessary for most events to ensure adequate space and preparation. It helps organizers plan successfully.

Certainly! Costume parties are open to everyone, regardless of experience with themed events or dressing up.

Yes, joining these events is a great way to meet fellow costume lovers and create lasting friendships in the San Francisco area.

Yes, you can find costume parties focusing on various themes, from classic movie characters to seasonal celebrations.

While most costume parties encourage dress-up, check the event description for specific guidelines; some may have flexible costume requirements.

Most events are thoughtfully planned by hosts to ensure a positive experience, though organization quality may vary.

While many costume themes exist, not every interest may have a dedicated event. Explore regularly as new ideas pop up often.

Meetup allows users to organize their own events, including costume parties, expanding options for hosts and attendees alike.

While Meetup encourages connection, forming genuine friendships takes time and active participation in community events.

Costume parties can be both in-person and online, depending on the event organizer's format and current health guidelines.